I have an HIS 5850 and a core i7 920 (not overclocked), 6GB Super Talent DDR3 1866. Most of my games play quite smoothly (Fallout 3, L4D2) but i seem to be having a bit of trouble with oblivion. I ran FRAPS during my game and with all max settings, I was getting an average of around 60FPS. Fine. However, relatively often, when a new enemy enters or i move into a different city, the game halts for a second, the FPS drops to around 20 and then shoots back up to 60. No, it isn't completely game rendering, but I paid for a very expensive system and i don't think I should have this problem. I am not sure if this is a VGA, CPU, RAM, or another problem so this post may be in the wrong category, my apologies. Any advice would be greatly appreciated, thanks in advance.