X800 XT -Brand New
AMD 64bit 939pin 3500+
1 Gig Crucial Ram
7Fans (excluding processer and Cpu fans)
Dual Maxtor 80Gig SATA RAID (not sure if that matters)
Problem:
I've been playing Guild Wars for well over 8Months, I had a slight problem before with fps but that was my graphics card, so i went out and bought a new one. It works perfectly, smooth, beautiful and shiney. Untill i'd say about saturday (2 days ago) my FPS just dropped to below 30fps(max). Walking around busy and empty towns i get roughly 15fps and in missions 10fps

[EDIT] Also another problem is i press Ctrl+Alt+Delete and it tells my it's using 100%cpu usage and 800odd PF usage. What does this means?[EDIT]
I have settings on full, resolution on 1280 x 960. I use fraps to see my fps and before the random drop in fps i used to get roughly 80fps(max) and 60fps(min). I have absoloutly no idea what caused the drop in fps and i've tried reinstalling drivers but it still doesnt seem to work.
[EDIT] I have tried lowering settings but this makes no difference either[EDIT]
Has anyone else encountered the same problem?
Can anyone suggest help/recommendations?
Is there anything wrong with my spec that could effect my gameplay?
Get back to me as soon as possible please

Thanks in advance.
Sgt.Suicide