I've found a problem with CC. Everytime i use it, it clean something of MSVDM (Microsoft Virtual Desktop Manager) in the registry.
In details, after the clean i can't set any image for each desktop. A normal unistall and reinstall is useless. To have the MSVDM fully functional, i must unistall, find in the regedit this key [HKEY_CURRENT_USER\Software\Microsoft\Powertoys for XP\MSVDM] and cancel it. Now i can reinstall the tool.
Please check the problem.
See u...