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When I try to watch some videos on YouTube, I get the output of the following type: enter image description here

The behavior persists regardless of the web browser. Is there a solution for this problem?

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Which version of Adobe Flash Player do you have installed? Are you using YouTube's HTML5 video player? Are your graphics drivers up-to-date? – iglvzx May 4 '12 at 7:47
Also, if you are using Flash, try disabling hardware acceleration. – iglvzx May 4 '12 at 7:53
maybe related:… – Baarn May 4 '12 at 8:22
@iglvzx, version is 11.2.202.something. No. Yes. – missingfaktor May 4 '12 at 8:49
@iglvzx, disabling hardware acceleration worked. Thank you! Can you please post it as answer so that I can upvote it and mark as correct? – missingfaktor May 4 '12 at 8:50
up vote 3 down vote accepted

If the issue is with Adobe Flash Player (as opposed to YouTube's HTML 5 video player), disabling hardware acceleration should fix the problem.

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Your problem seems like a more extreme version of the problem I had before.

As you said in your comments, you own a lenovo laptop, too. I assume you normaly update your drivers using the lenovo update tool. These drivers are mostly stable, but often not really up to date. I remember some time ago nVidia actually asked users to download the drivers for mobile solution from the laptop vendors site instead of their site. Whatever, this doesn't seem to be the case anymore, at least I have not found anything like that on their site.

So go to nvidia, download the latest drivers for your graphics card and install them. This should rid you off these green bars, somehow these seem to appear when using an older driver combined with the recent version of flash. Seems that the old drivers did not completely adopt some encoding standard.

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