help urgent gf2mx

hi
i have a amd duron 900 o/c to a 1.2 and also a gf2 mx 400 palit daytona and i seem to get frame rate drop in halflife/counterstrike.
It seems to drop around 50 when people are fighting in front of me...
How would i be able to get my fps to 99 constant cause i am sick of it slowing down....
Can i overclock it into a gts or something.. i have sufficient cooling

Help would be very much appriciated

Welcome To The Forums

What are the defaults speeds of your card? I got mine from 175core/166mem to 230c/205m without any artifacts. Drivers will also give you a performance gain with older cards.

My simple advice

100 % tested settings:
1)Det 23.11
2)Core 220
3)Ram 200

take a look at the geforce faq. i think there is something about that there.