I dropped mine back to 1.8 ... because I thought it was causing Doom 3 to lock up at 2.1. Of course ... I also had the AGP aperture set to 512 ... and after turning the clock speed back down ... I realized Battlefield 2 was really slow ... just because the aperture was set too high. Hmmm ... perhaps a little overclock (only 10% this time) will help.