So I have been having a problem for the past two days regarding my computer and not being able to access certain programs. The computer that this is all occuring on is my work computer, and I have a program called CCleaner by Piriform installed. I thought I had encountered a virus when I click on a link to the internet one day (it most likely was not anything), but I took the precautions to scan for viruses and spyware (did not find anything), and then I used CCleaner to clean temp files. While I was using the program I also saw it had a section where you could scan your registry for problems, so I ran that and fix all problems. I restarted my computer and upon restart when I tried to open applications like mozilla and a program I use at work that has a database called itemtracker... mozilla won't open at all, and itemtracker software does not work. So I did a system restore to a couple days ago and upon restart.... still can't open mozilla. I am using XP SP3, and have even tried uninstalling mozilla and reinstalling and it does not work. I feel the problem lies within my registry and wanted to know if there is a solution. PLZ HELP!!!