I'm running Lion on one of the early 2011 MBPs, i7 2.2ghz, 8 gigs RAM Lion is draining my computer. Pretty much everything I do, from Aperture to Scrivener to organizing apps in Launch Pad just sends my computer's fan flying and the battery draining. I'm accustomed to leaving my power cable at home and running on the battery with no trouble to get a few hours of Aperture in the middle of my day while I'm out and about. Now I don't know that it would make it much past an hour. Is there something in Lion that kills the computer? Something I can do to make it better?