I have done a fresh install and run flash from the link you gaved me sinbin, it worked ok and I seem to have found the problem. When enabling my ati hd 4330 driver, my flash sometimes freezes, and such things. So I found the problem, the ati driver. But what do I do next? I can not stay with my proprietary driver because sometimes I play games, I want to enable my effects in ubuntu...what do I do next?
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