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I'm now running ML DP4 with gfxcardstatus. It's mostly ok but sometimes when I close the lid, it will not sleep immediately. Opening the machine again shows a black screen with only a cursor. However If I wait, the machine eventually sleeps. It can take 5mins tho
 
I'm now running ML DP4 with gfxcardstatus. It's mostly ok but sometimes when I close the lid, it will not sleep immediately. Opening the machine again shows a black screen with only a cursor. However If I wait, the machine eventually sleeps. It can take 5mins tho

Hmm, I'd definitely suggest filing a Radar at http://bugreport.apple.com about that and including any kind of logs you might have.
 
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