Need Counter Strike 1.6 help

Hi, I have played cs for many years and i havent had any problems until i reformatted and installed a new video card. I have x1600 radeon 512, all the drivers installed and everything runs fine. But in the game when i go to aim at someone my cross hairs jump and glitch every where and i get a slight fps drop. I run the game at 2500 rate cl_cmdrate 101 cl_updaterate 101 ex_interp .01 and fps_max 100. Everything is the way the game is supposed to be played but not working. I even have vertical sync off. someone please respond back to me.
 
Back