I ordered an Alienware Aurora a year ago with a 5970HD, 2.6GHZ i7 and 12gb ram.I have had problems off and on, and have frequent driver crashes if I turn on aircraft casts ground shadows and/or ground scenery cast shadows. I had a serious jaggie issue for a while, but fixed it by following Nick's settings and adding ATI Tray Tools.My last driver upgrade was to vs 12.x and with the new CCC I did not reload Tray Tools. I have been getting fair FPS except in graphic heavy areas like SEA-TAC with FTX PNW running. I also have REX, GEX, and UTX. I tried to OC using MSI Afterburner but everytime I move from Core Voltage to Core Clock, Core Voltage reverts to default.I tried setting the voltage and saving, but no go. It always reverts to default. I can OC using CCC, but without the voltage change, it is unstable and crashes the driver. Any ideas? BTW, I never got above 875/1125.