It could be your shitty sound card...when i use to play counter-strike i ran "Software mode" on my sound..my ATI radeon 64 ddr(that's not braggin', that's feeling sorry for paying 200$ for it) would run about 25fps and then i changed my sound option to "EAX sound"(soundblaster) my fps jumped to 80fps. Just a idea. KT7A RAID PRIDE!!! lol.