first thing is get the latest detonator drivers
i found this on a forum
I was running using the 23.11 driver previously and was getting about 25fps at 800x600 (16bits) with graphic settings tweaked using the Graphic Editor.
I installed the latest driver, 29.42, and was astonished to get 34fps at 1024x768 (16bits) with the same graphic settings !!!
WOW !!
PO maintained at about the same (around 75 to 110 depending on where you are on the track).
his video card is a 32mb geforce 2 gts, so i expect that you'll get slighty better results with your GF4ti 4600
LS's Tip of the weekESSENTIAL OILS aren't essential unless you're an engine, a gearbox or a twat