WoW Gameplay HD 4830

Computer Specs: Budget ASUS micro ATX MB AMD Athlon X2 5050e at 2.8ghz with stock cooling (2.6ghz stock speed) Corsair 2gb ddr2 800mhz ram ASUS HD 4830 512mb GDDR3 (575mhz core, 2ghz mem) All settings at high with 1440x900 resolution, this game is very playable. It has its lag stutters every now and then, but then again i am recording with fraps. Without fraps, it gets around 20 to 40 more fps. One thing that is not normal, when i go into Dalaran, my computer just seems to not want to render it, so it decides to crash... Other than that, Naxx, Maly, and other high level raid instances run very smooth, and thats what matters to me.