Originally posted by ATI_Dude
You can fix this problem by following these steps:
1. Open user.cfg (in your Thief 2 directory
2. Find the line:
and remove the semi-colon ; to activate safe texture management.
3. Set your desktop resolution to match the in-game resolution
This fixed the problems for me in Thief 2 using the 52.16 drivers.
He already fixed it... O_o