battlefield 2 problem

Something weird is going on. Like 2 years ago it was fine, i could easily play without any lags or problems. I downloaded BF2 again, played one day, and the next day some shit started to happen. When I play the game my mouse and controls freeze for some time. Like 1 sec or 2 sec . time between frozes is like 10 secs.

Talking about single player only


I have tried :

Reinstall
mouse drivers on/off
FPS seems to be fine althought downgraded all graphics + from ati control settings.


Ps . Computer is freshly formatted but have all the drivers needed.