[ubuntu] Ubuntu desktop froze after Nvidia driver installation

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http://ubuntuforums.org – Hi everybody,im a newbie to Ubuntu. I'm using Ubuntu 11.04, everything was working until i started my computer today. The screen was flickering heavily, it was as if it is refreshing and everything momentarily disappeared twice every second. I had changed my screen resolution earlier before shutting it down. using ctrl+alt+F1 i tried to install the latest Nvidia drivers using: sudo apt-get install nvidia-current I restarted my computer, now the desktop is properly shown and I can move my mouse but i can't click on anything! it's as if it is frozen. Using an online guide I tried t (Hardware)