Hey guys.
I don't know why, but when I run shaders, TB lags pretty badly.
I can run shaders, but it runs at like, 8 fps.
I'm running Vista, 32 bit.
And my graphics card is: GeForce 6150SE nForce 430
Does anyone know if I can make it so I can play lag free? :P

If you can add more system memory to the graphics in the computer's BIOS that might speed things up a little bit.

Also try turning off some of the additional shader options, granted it wont look quite as nice but it'll be worth it to make the game playable.