Full screen mode won't work. Whenever I switch to it, the mouse cursor disappears, and I'm forced to restore to old settings. I can run the game in window'd or borderless window modes only. Therefor, I'm stuck at a much lower resolution than my monitor supports.

Windows Vista 64 bit
Intel i5-2500k Processor
8 gbs Ram
Radeon HD 6900 1GB

All drivers are updated.