[SOLVED] ubuntu 12.10 problem

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http://ubuntuforums.org – Hi there, I'm a new using ubuntu user! My trouble is : - I were working with eclipse and then when I turn off wifi my OS has been crashed, I found that I can't communicate with it so I restart my laptop (I use Acer asprire 4820 core i3 first generation) - After reset, my eclipse didn't work. It only shows white blank! I remove & reinstall it in Ubuntu Software Center. But nothing change... Please tell me what to do. Thanks, (Hardware)