Black squares are in the CCRC task bar instead of icons

why the task bar icons for IBM® Rational® ClearCase® Remote Client (CCRC) are appearing as black squares and provides solutions to resolve the issue.
 
Symptom

Attempts to use CCRC results in black squares appearing in place of the task menu buttons and directory tree icons:


     
    Cause

    This can occur due to the Buffer Overflow Protection option being enabled for McAfee VirusScan Enterprise 8.0i.

    Note: This behavior is also known to occur when using some IBM WebSphere® products, refer totechnote 1180700 for more details.


    Cause 2
    This problem can also occur when your local image directory for the glyphs are corrupt, specifically 

    C:\Program Files\IBM\Rational\ClearCase\CCRC\plugins\
    com.ibm.rational.clearcase_\icons     



    Cause 3
    This problem can also occur when there is spyware installed on the machine.

    Example:

    Fiddler and its related RPASpy was found to be problematic.

     
    Resolving the problem

    The latest patches for McAfee VirusScan Enterprise 8.0i must be installed on the local host, which can be obtained directly from McAfee, see article KB40531.

    For assistance contact McAfee Enterprise Support.


    WORKAROUND:

    Until the McAfee patches are installed, the behavior can be corrected by disabling the Buffer Overflow Protection. For directions, refer to the McAfee VirusScan Enterprise 8.0i Product Guide.


    Solution 2
    Remove if needed or simply reinstall the plug-in to fix the corrupt glyphs in the icons directory.


    Solution 3
    Remove the spyware application if it is determined to be conflicting with ClearCase.

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