Hi all, please help me. I have lag problem in all racing games (except Track Mania), when I say lag, I mean that after 15 minutes of playing, there is a FPS drop from 30 FPS to 5 for about 15 seconds, then everything comes back to normal for aprox. 3-5 minutes, when lag again. The system is Athlon XP 5200+, Asus m2A-mx, 4gb DDR2, HIS Radeon 4650 1Gb DDR3, Win 7 Pro 32bit.