THANK YOU guys....It worked.I downloaded the driver and installed it.Now NVIDIA graphic card is enabled and all desktop effects were working.Before i saw urs solution I tried 2 enable it in a number of ways bt of no use ..So i posted in www.ubuntuforums.org and they gave me this link .Finally this worked TQ broderboy and ubuntu forums.
-- nvidia-glx-new driver displays white screen of death https://bugs.launchpad.net/bugs/208718 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
