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I have installed Ubuntu 12.04.2 x64 without a problem at all and I wanted to install the GUI (Ubuntu-Desktop).
I followed the below Steps:
sudo apt-get update sudo apt-get install ubuntu-desktop
Ubuntu went through the installation and then the screen on my Acer v193L went black and there is currently no output to the screen. The PC is doing something as the HDD Light flickering none stop.
If someone could point me in the right direction that would be great.