turning off background programs

[I Hate Pants]

Okay so suddenly im getting a 20 fps drop in PS????? I went from having 60 fps in sanc. to have 39 fps the next week. I've downloaded a few things lately, so I wanna see if I turn them off that PS will run normally again. ( KAZZA, Steam, etc.)

I forgot what exactly it is you type in "Run". Its like dx something... right?

I doubt its my computer as I've said before I never had such poor fps before. But just incase here are my specs:

768mb of DDR PC3200 400
ATI RADEON 9600XT 128MB
P4 2.6Ghz 800fbs
ASUS P4P800 (using onboard 5.1 sound device)
40GBB HD