I'm having some really bad problems with my windows XP machine. What happens is most of the applications I install(mainly games) stop working after about a month. Every time I try running a game or whatever, it'll keep prompting me for a cd, or your trial has expired, etc. I have reformated my computer so It can't be a virus. After about a month time it starts acting up like it just is now. I can't keep reformatting like I have been as it takes way to much time and effort to do it.
80 GB western digital drive
40 GB WD backup
2700+ athlon XP
ATI raedon 9800pro 128 MB
NForce 2 motherboard(The problem can't be the mobo because the problem occurs on other mother boards as well)