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Problems with video tearing on my imac

259 Views 2 Replies Latest reply: Nov 25, 2012 11:49 AM by BDAqua RSS
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Nov 11, 2012 11:29 AM

I have a 21.5 inch imac (mid 2011 model) 4 gb memory with amd radeon hd 675om(512 mb) Lion OSX.


I'm very disappointed it has problems with tearing on the display, with invisible horizontal lines occurring whenever I'm watching videos , using  iphoto and or even browing the web. Is this an known issue as its very annoying?  Any suggestions or ideas for fixing this problem would be gratefully received ?


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iMac, Mac OS X (10.7.5)


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