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I installed Ubuntu 12.04 to dual boot with Windows 7 on an ACER netbook. The netbook boots to Ubuntu without a problem but freezes at login or right after. Nothing moves and nothing responds. I have to shut down the computer to restart it. Any suggests as to how to correct the problem?

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possible duplicate of What should I do when Ubuntu freezes? – Jorge Castro Aug 7 '12 at 13:28

On some aspire netbooks you need to enable you need to turn on network boot in the BOIS. See more here:

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