Hello, i need to post my problem hear. I have serched the solution in every board so i came to the last one

So my graphic problem is i cant find good drivers for my mobility RADEON X1600 ( hi ress ver. 1600x1200 )
I tried every drivers( oficial from HP site )
the new catalyst and the omega drivers.
I have some diferent problems with them.
I will say problems at Call of Duty 4 - as thats my newest prog. for 3D
HP - information about Direct3DDevice presents error - in game i see black holes:|
Catalyst - i see black squares in some places, and some black texture at some models ( for example : head, table ect. )
OMEGA - game dont want to load - cant change ress the screen blink 4 or 5 times than some error come in ( initial driver error )
Modded desktop drivers - game works but some times black squares come in... not allways,- when they apear the punkbuster drop me out from game.
ALL MY PROGS ARE ORGINAL. (game, progs, OS )
OS: WIN XP HE
1gb memory
INtel core2 duo (2.2 ghz )
I dont know what to do

i ask for help!
p.s. sorry if i make some mistakes cause my eng. is not so well as it used to be :/