LAST REVISED: 07/19/05 13:11
CPC VIEW
SOLUTIONS
VERSION 6.0

This document describes workarounds for difficulties you might encounter.


1. Installation Issues



1.1. IE5.5 and IE 6

The symptom: When you try to view an image file, a small multi-colored icon appears where the image should be.

You are probably using a plug-in version of the CPC viewer, rather than an ActiveX version. Microsoft has removed support for plug-ins (such as CPC Lite and CPC View) from the latest versions of IE (version 5.5 and above). Plug-ins can no longer be used with these versions of IE. You can find more information regarding the removal of plug-in support from IE on the Microsoft web site.

Solution: Install CPC View ax

Users of IE should install CPC View ax, the ActiveX control version of the viewer. Because CPC View ax is an ActiveX control rather than a plug-in, it is not affected by the problem. Under IE, you can automatically install CPC View ax by clicking here.


1.2. Automatic Installation of CPC View ax

The symptom: Automatic installation of CPC View ax fails.

The most likely explantation for this problem is that Internet Explorer is configured to block the execution of ActiveX controls. CPC View ax is an ActiveX control; in order to use it, Internet Explorer must be configured to allow the use of ActiveX controls.

Solution I: Change your Internet Explorer security settings.

You can change the appropriate Internet Explorer security settings as follows:

  1. Select Internet Options... from the Internet Explorer Tools menu. This will cause the Internet Options window to appear.

  2. Click the Security tab at the top of the Internet Options window. This will cause the window to display the current security settings.

  3. Click the Custom Level... button at the bottom of the window. This will cause the Security Settings window to appear.

  4. Scroll through the Settings section of the window and find the setting titled Run ActiveX controls and plug-ins. This setting should be set to Prompt or Enable.

  5. Scroll through the Settings section of the window and find the setting titled Download signed ActiveX controls. This setting should be set to Prompt or Enable.

Note: Please note that if you are using Windows NT, Windows 2000, Windows XP, or Windows 2003, you also may need to be logged into an account with administrative privileges in order to install controls such as CPC View ax directly from the Internet. (This requirement is dependent on the security policies selected by the system administrator.) If you have configured Internet Explorer to allow the execution of ActiveX controls and you still unable to install the control, please try installing CPC View ax while logged into an account with administrative privileges.

OR

Solution II: Manually install CPC View ax

You can manually install CPC View ax as follows:

  1. If you have not already done so, download the latest version of the CPC View ax OCX file and save it on your computer.

  2. Click the Start button on the Windows task bar. This will cause the Windows Start menu to appear.

  3. Select the Run... command from the Windows Start menu. This will cause the Run window to appear.

  4. Enter the following text into the Run window:
    regsvr32 "<path-to-ocx-file>"
    where <path-to-ocx-file> is replaced with the full pathname of the OCX file that you downloaded. For example, if you saved the CPC View ax control to c:\Program Files\Cartesian Products\CpcViewAX.ocx, the following command would register the control:
    regsvr32 "c:\Program Files\Cartesian Products\CpcViewAX.ocx"
That should do it. The control should now be installed. To test the installation of the control, try opening this document.

Warning: Once the control has been manually installed, the CpcViewAX.ocx file should not be moved. If you do move the file, you must re-install the control.


1.3. Netscape

The symptom: You've downloaded and saved the Netscape plugin installation program, but when you execute it, you get the error message

LZCreat failed

There are three possible causes for this symptom.

  1. You may not have closed all Netscape windows before installing the plugin. Try closing all Netscape windows and then reexecute the plugin installation program that you downloaded.
  2. The Netscape program that you are installing the CPC Viewer for may not have a plugins directory. Check to make sure that there is a plugins directory in the same directory as Netscape itself. (If you installed Netscape in the standard way, the plugins directory should be \Program Files\Netscape\Navigator\Program\plugins.) If there is no plugins directory, create one and then reexecute the plugin installation program that you downloaded.
  3. You may have downloaded the installation program into the plugins directory itself. This may cause the same problem. Try moving the installation program to a temporary directory before reexecuting it.

If you have other installation problems, such as being repeatedly prompted to install the plugin or having extra Netscape windows being opened, you should check for these three cases as well.


1.4. QuickTime Conflict

The symptom: When you try to view a TIFF file, QuickTime is loaded instead of CPC View.

It sounds like you have installed the QuickTime plug-in on your computer. The QuickTime plug-in is an optional component of QuickTime. The QuickTime plug-in registers itself as a TIFF viewer, causing your system to have two registered TIFF plug-ins -- CPC View and QuickTime. When your web browser encounters a TIFF file, it arbitrarily chooses one of the two registered TIFF viewers. On some systems it will choose CPC View; on other systems it will choose QuickTime. Apparently, on your system, your web browser is choosing QuickTime.

To further complicate the problem, the web browsers do not provide a mechanism for specifying a preference for one plug-in over another. If the web browser does not happen to choose the plug-in that you want, you need to try one of the alternatives given below.

I. Install CPC View ax

If you are using Internet Explorer, one simple thing you can do that typically corrects the problem is to install CPC View ax, rather than CPC View. Because CPC View ax is an ActiveX control rather than a plug-in, it is not affected by the conflict. Under IE, you can automatically install CPC View ax by clicking here.

Note: CPC View ax is only compatible with Internet Explorer and certain versions of AOL. CPC View ax is not compatible with Netscape.

OR

II. Reconfigure the QuickTime plug-in

If you are using QuickTime V4 or later, you can reconfigure the QuickTime plug-in so that it no longer registers itself as a TIFF viewer. For information on reconfiguring the QuickTime plug-in, visit the Apple web site.

OR

III. Uninstall the QuickTime plug-in

To uninstall the QuickTime plugin, try the following:

  1. Close all web browser windows.
  2. Check if the QuickTime plugin has an uninstall procedure. If it does, use it to uninstall the plugin.

    Otherwise, find the file "npqtplugin.dll" on your computer. It is likely to be in the "plugins" folder of your Internet Explorer or Netscape installation directory. By default, this would be "C:\Program Files\Microsoft Internet\plugins" (Internet Explorer) or "C:\Program Files\Netscape\Communicator\Program\plugins" (Netscape). Once you have located the file, delete it (or move it to a different folder if you might want to re-install it later).

    Keep in mind that there may be multiple copies of the file. Some copies might be named "npqtplugin2.dll" or "npqtplugin3.dll". You need to get rid of all of them.

    Also, keep in mind that, by default, the Windows File Explorer does NOT display filenames that end in ".dll". So, to locate the files, you should use the "Find/Files or Folders..." command in the Windows "Start" menu. (Or, you can enable the display of all files using the "View/Options..." command of the Windows File Explorer.)

  3. Restart your computer.
  4. Re-run the CPC View installation program. If you no longer have the installation program, you can get if from here.


2. Printing Issues



2.1. HP Printers

The symptom: Printing to an HP printer yields blank or partial pages.

HP acknowledges that there can be problems printing Internet graphics on DeskJet series printers. One of the reported symptoms is that the printer ejects a blank page. They recommend installation of the Microsoft universal printer driver appropriate for your printer. For most DeskJet printers, the appropriate universal driver is the Deskjet 550C driver. Additional information can be found on the HP web site at http://www.hp.com/cposupport/printers/support_doc/bpd05141.html (technique 6).

Similar issues affect the HP OfficeJet Pro 1150C and 1170C series. See http://www.hp.com/cposupport/multifunction/support_doc/bpu01105.html for further information.

Similar issues affect the HP LaserJet series. See http://www.hp.com/cgi-bin/cposupport/get_doc.pl?SNI=lj&LC=printers&Tfile=bpl03541 for further information.


2.2. Internet Explorer

The symptom: When printing using Internet Explorer's print command (or the print button on the Internet Explorer toolbar), the result is a blank or gray page.

Due to difficiencies in Internet Explorer's implementation of embedded multi-page documents, printing will not work correctly if it is initiated via the native Internet Explorer user interface (e.g., the File/Print... command; the print button on the toolbar). Under Internet Explorer, you must initiate printing via the CPC right mouse menu.

Try the following:

  1. Click with the right mouse button anywhere within the CPC image window. This will cause the CPC right mouse menu to appear.
  2. Select Print... from the Document sub-menu of the CPC right mouse menu. This will cause the "Select print options" window to appear.
  3. Select the appropriate options in the "Select print options" window and click the OK button. This will initiate printing.
You can find more information on CPC printing in the online User's Guide.


2.3. Netscape

The symptom: When trying to print a document from CPC View under Netscape Communicator, the browser crashes.

This failure is dependent upon the method by which you invoke the print command. If you invoke the print command via the standard Netscape user interface elements (that is, "File/Print..." from Netscape's menu or the Print button on the Netscape toolbar), Netscape crashes immediately. However, if you invoke the print command from the CPC View right-mouse menu, printing should work correctly.

This appears to be a regression in Communicator version 4.03 that applies to all full page plugins; it is not CPC View specific. For example, if you have a PDF document displayed via the Adobe Acrobat plugin for PDF files, you will get the same crash behavior. This has been fixed in version 4.04 of Communicator.

You can upgrade to Communicator 4.04 or, as a workaround, you should be able to print your documents as follows:

  1. Right-click anywhere on the document image. This will bring up the CPC View right-mouse menu.
  2. Select "Print..." from the "Document" sub-menu. This will bring up the CPC View print dialog.
  3. Select the desired options from the dialog box and click on the "OK" button.


3. Display Issues



3.1. Mirrored or Banded

The symptom: CPC View displays a page in mirror-image or garbled or banded at some magnifications, but correctly at others.

The likely cause of this problem is that you are using a Matrox graphics card.

If you have this symptom, you can enable a simple workaround. Once the workaround is enabled, it will remain enabled on subsequent invocations of CPC View until such time as you explicitly disable it. This procedure requires CPC View 4.2.4 or later.

  1. Bring up a CPC View window by pointing your browser to a CPC or TIFF file.
  2. Set the magnification to 100%. (The image should be displayed correctly.)
  3. Select the 'Preferences...' item from the 'View' sub-menu of the CPC View right mouse menu. This will bring up the CPC View Preferences dialog box.
  4. The Preferences dialog will have a checkbox labeled 'Always reduce to 8 bits per pixel'. Check this box. This will enable the workaround.
  5. Click on the main CPC View window to dismiss the Preferences dialog.

Once the workaround is enabled, imaging should work correctly.


3.2. Documents Show as Garbled Text

The symptom: You are serving TIFF or CPC documents on your web server and they appear in a web browser as garbled text.

Your server is probably serving the documents with an inappropriate MIME type.

You should configure your Web server to serve files with .cpi and .cpc extensions as image/cpi, with .tif or .tiff extensions as image/tiff, and with .pbm extensions as image/pbm. Consult the documentation for your server to determine how to perform this configuration.


4. Miscellaneous



4.1. Unsupported TIFF Variants

The symptom: CPC View reports an error message "Unknown TIFF compression method".

This error message indicates that CPC View has been asked to display a TIFF image that has been encoded using an unsupported compression method. TIFF is an open-ended specification which allows for an infinite number of extensions. If you attempt to view an image stored using an unsupported compression format, CPC View will notify you with the error message:

Unknown TIFF compression method

CPC View fully supports the TIFF 6.0 baseline reader specification. In particular, the following TIFF compression methods are supported:



4.2. Other Error Messages

The symptom: CPC View reports some other error message.

The following error messages indicate that the TIFF file that you are attempting to view is ill-formed in one way or another.

Unimplemented fill order Bad TIFF header
Bad TIFF version
Invalid TIFF File
Illegal TIFF image dimensions
Missing strip information
Short read
Corruption in TIFF image data (CCITT Group 3)
Corruption in TIFF image data (CCITT T.6)
Page number is beyond end of document
End-of-stream during bitmap read

The following error message indicates that the CPC file that you are trying to view is ill-formed in one way or another:

Source stream exception
Page number is beyond end of document

The following error message indicates that the PBM file that you are trying to view is ill-formed in one way or another:

Short read
Unable to read page
End-of-stream during bitmap read

The following error message indicates that the file that you are trying to view is not recognized as a valid image file.

Unknown document format

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