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  • 2 weeks later...

It happened frequently with the GM build, haven't seen it after updating to v10.8.1.

My 2010 with "high-end" video card does struggle more with graphical effects than it did under OS X Lion. Personally I think it's ludicrous Aqua was coded in a way it requires so much processing power.

It happened frequently with the GM build, haven't seen it after updating to v10.8.1.

My 2010 with "high-end" video card does struggle more with graphical effects than it did under OS X Lion. Personally I think it's ludicrous Aqua was coded in a way it requires so much processing power.

Do you have the auto brightness turned on your Mac? I think thats the culprit to this issue... when my screen brightness change slightly I noticed a quick flicker on my screen when using my iMac (not the login screen). Although the login screen when turning on will flicker very badly for a while (which isn't much of an issue i spend what like 3 seconds on the login screen)

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