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PNewt

 
Member Since: Feb 23, 2012
Posts: 20
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My 2011 MacBook Pro runs amazing when i have it plugged in. Very fast, no lagging and all apps run smoothly. when i unplug it from the power source it is terrible! everything lags. i cant even scroll in a web browser. any idea why this happens? and how i can fix it?
QUOTE Thanks