I'm having an intersting problem latly with my card. In Doom 3 I can run above 420 core without a problem.. all the way over 430 that I've tested so far. Then I go to play CS:Source or Farcry.. and my game will either do the 5-10 sec pause and resume thing or freezes all together. When I lower my core speed down to around 410 it solves most the problems with it freezing. Anyone know why this is?