hi hi hi i have just put together a new pc from bits and pieces, but the problem is that when the computer has nothing to do it freezes.... its really annoying. if i leave it for about twenty minutes...BAM....its frozen. the weird thing is that you can play counter strike source in 1024x768 getting over 100 frames per second, for as long as you like.... i was playing it for most of the day yesterday, the only breaks to eat and pee, and it didnt even flinch. but when i shut all apllications down, and leave it on desktop. it freezes and needs a restart. something like this: asus P4800-se mainboard intel pentium 4 2.8 gig (no hyper threading) 500 meg ram (2 256 sticks of matched samsung ram 3200) maxtor 80 gig sata hdd sound blaster audigy (internal rack mounting fits in the 5 1/4 bay) at the moment in has a radeon 6800 pro hercules in it, but it has had various graphice cards and it has made no difference. granted, that my psu is a bit crap, it is a 350w jobbie that is p4 ready, running 18a on the 12v rail. so should be ok. (i am gonna change it soonish anyway) any ideas guys? please help.