If you are OC'ing you may have to turn it down a little. The game is extremely sensitive to any system instability. Also, some of the people on my team have had issues with running Xfire in the background while BF2 is playing.
didn't oc, i usually have teamspeak, xfire and maybe even some music. The music isn't often. I've tried ocing before, but the computer locked up so i just returned them the clocks to normal. Hasn't always done this with xfire.........its on and off.......
Heh, I installed the new ATI/AMD Catalyst Drivers 7.1... yea, 3DMark06 didn't complete completely without freezing. So, I had to go back to Catalyst 6.12 (came out like 12/22/06) Everything seems to work now.
Do this only if patching BF2 didn't help.... Heh, I've been to busy with BF2142 8)