Hey guys, had a quick search but couldn't find anything. Recently (well for a while) every now and then a program won't load. Everytime i load the program i get a "this program must close" error. It only really happened to nero, even trying different versions of it. But i recently installed Gif animator 5, and it also does it to this now. I'm thinking something is messed up in XP somewhere, and considering the repair function, but just wondering what this exactly does? As far as i'm aware it replaces all the system files? but will it mean i have to re-install all my programs? or will this keep them intact? thanks.