According to other messages I have read, PProCC VERY OFTEN requires a graphics adapter update
What is your brand/model graphics adapter, and your device driver version?
If you have nVidia... How to determine your nVidia driver version
Right click in any open area of the Windows desktop
Select NVIDIA Control Panel from the popup window
Select SYSTEM INFORMATION at the lower left corner
Driver version should be the 1st line in Details
I have a GTX285 using driver 296.10 and Win7