my prob is tht my game speed is ok but the 3d mouse senstivity is delayed i cant aim immediately to an enemy..after moving the mouse there ie a delay of arnd 1 to 2 secs..i m unable to aim on an enemy properly..the mouse movements are not exact like in other shooter games...i hav tried changing the 3d mouse senstivity but doesn't do much to fix the problem...i hav also tried changing the graphic settings but still the prob is same..my system config is nvidia geforce 256 mb graphic card xfx 7100 serie, 1.5 gb of ddr2 ram,3.06 ghz intel pentium 4.

Take a look at the tec spt page in the sticky above.

Also use to check your system.
http://www.systemrequirementslab.com/referrer/ubi_srl_u...ation_option_id=4417

A slow mouse is normally not enough memory.

This might be related to your GPU.
What is the model # for your XFX 7100GS? There are some cards in this series listed on their site with 64MB (or 128MB)
onboard supporting (w/TurboCache-which draws from the system) 256MB memory.