Install the Sneaky Upgrade and enable the 'Mouse Improvements' option. Download and run Nvidia Profile Inspector. Under Profiles select Thief 3 Deadly Shadows. It won't start. I follow the instructions for installation. Steam steamapps common Thief Deadly Shadows System.

Originally posted by:Set 60 Hz in Catalyst Control Center and Windows Control Panel, I even tried Rivatuner and DirectXOverrider, both enabled 60Hz and vsync but without luck, im still having the ladder/lockpicking bug Don't bother with Catalyst Control Center. It's pretty bad at forcing its settings into games (as oppose to panel that Nvidia has). Manual Injection Molding on this page. If anything - use RadeonPro. --EDIT-- Oh great. This game is using D3D8 for rendering.