MacBook Pro :: Don't Use The Dedicated Gfx Card

Apr 2, 2012

i have a late 2011 macbook pro 15 with i7 and hd6750gfx card. 

but i installed osx again and installed every uppdate and so on. But when i play Starcraft 2 i lagg alot.

i look at my speccs and the mac says i only have the hd3000 integrated gfx card. So the question is... how do i activate the dedicated?

Info:
MacBook Pro, Mac OS X (10.7.3)

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[code]...

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