Don't run with Full Screen Anti Aliasing or Ansotropic FIltering on. I noticed my GP4 is so much better with them on and you really can't tell the diff.
Beta tester for;
Descent 3, C & C Generals, Independance War 2, Starfleet Command 2,
Settlers IV, Tzar, Allegiance, Starfleet Command,
MAX 2, Defiance