Hi Superrollo, Welcome to TSF.
First try all the steps listed here:
!---IMPORTANT: Please Follow These Steps Before Posting---!
If not, post back and tell us all your system specs.
Graphics card
CPU
PSU
Motherboard
RAM
__________________
"Come forth for the cattle call
Confront the evil river you can't control
Wicked ways and venomous eyes
Just human nature in disguise..."- Clouds over California