[ubuntu] video playback flicker

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http://ubuntuforums.org – I was watching the livetune redial video and noticed massive video flickering in both vlc / movie player :\ This was not the case yesterday, but i did update software but just security packages. Heres where it gets tricky: I had the same problem with 12.04 (i did a clean wipe of computer and installed 12.10) but it was just a minor transparent flicker at the top of the video that i could stand. This flickers in the middle of the video chopping it in half. So this could also be a hardware problem and not software. This computer has just a massive amount of power and it should not flick (Hardware)