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My computer is a HP dv6 with 8gb ram, 500gb hdd and a amd radeon hd 6480 graphics card and dual core cpu. Now here is my problem: When I try to run some programs such as gucvie and xbmc, the screen blinks on and off every few. I have tried using both the opensource & proprietary drivers for my graphics card. Running these programs in terminal displays no errors.
Any clues here?

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the screen blinks on and off every few... seconds? Or milliseconds? It actually matters (i.e. I'm not just bugging you for the sake of bugging you :P) :) –  MiJyn Nov 30 '12 at 1:06
    
It could be switching resolutions. Have you verified that your programs are using the same resolution that your DE is? –  thirtythreeforty Dec 1 '12 at 18:14

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