I've just added a hot X1900XT to my comp, and I figured I'd be able to play all my games on max settings, but as it turns out I can't play Oblivion on max without some low FPS, I can't play F.E.A.R. smooth on high settings, and I can't play Quake 4 on Ultra High settings. Would a DVI to DVI cable from my monitor to my video card boost my performance.. or is there something else that is bottlenecking my performance. Another problem I have is with Vertical Sync. I know what it is and what it does, but why is it freezing my game on Half-Life 2? Like the graphics will lag every little bit, and then like when a huge scripted scene is about to begin, the game will just freeze. Any help?