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I've been running ubuntu fine few months ago then decided to reinstall everything and get a fresh start. After about few months of windows I couldn't stand it and re-installed ubuntu. It was all running nice and smooth installation and got up to the restarting point:

  1. Restarted after fresh install of ubuntu on top of windows 7 Ultimate

  2. 64-bit Everything was running fine Grub and all I selected ubuntu started loading and it stops at 2 different points

  3. When running 2 screens it has "_" in top left corner flashing or just a blank screen
  4. Displays "[OK]" and in next line "_" flashes.
  5. Test with one screen FRESH install some random flashes of loadscreen or background repeatedly ( looks as though GPU drivers or something were going really bad).

My RIG: ASUS M4a89gtd pro/usb3 VTX 3d 6970 8GB Kingston ddr3 ram AMD Phenom 2 x6 1100t (anything else needed please leave a note)

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boot into windows - look at your system information. What graphics card do you have? Can you boot with a Ubuntu live CD to a GUI desktop? – fossfreedom Jan 30 '12 at 23:25
Do you have multiple harddrives? any previous grubs or any thing? – sarveshlad Jan 30 '12 at 23:28
CD's worked fine after install it all crashed. FIXED Now. – pankomputerek Jan 31 '12 at 21:31

I've managed to fix it. Ubuntu 11.10 64BIT

I first of all Put in LiveCD and UNPLUGGED LAN cable (perhaps some updates were messing it up I'm not sure) then proceeded with the installation and have disabled Automatic Logging In finished installation and turned ubuntu on worked fine but B*EFORE logging in I disabled 3D Unity*. Then just about managed to get it all fixed by replacing drivers using this askubuntu thread to install drivers & set up multi-screen: ATI Radeon HD with Catalyst driver stuck mirroring screens

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