and how to configure my system like that so that it does not uses ATI drivers and i was not bumping the thread,it was my problem.....You must consider that I am only a beginner in linux.....
I downloaded and installed proprietary ATI drivers and i followed the procedure given in the other thread you posted for susja for the similar query......
after installation of driver and reboot...
I installed rhel 6.0 in my laptop but it is not upporting 3d graphics of rhel6 and i am getting an error message
"Accelerated 3d graphics not available
Desktop effects require hardware 3D...