My questions about what problems you're having are in regards to specifics. Pop-up error message in regards to hkcmd.exe and hccutils.dll? When does the error occur? What is your OS? If it is 2000 what does the event viewer say?
Also, as I said these errors involve your video drivers. Have you installed the latest ones or reinstalled the ones you have?
I want to help as I am sure everyone else does, the more specific you are the easier it is.