I have all the new OSX updates and I don't know which one came last. But since a week or so, my macbookpro doesn't go to sleep anymore when I leave it open. I tried everything. The display goes to sleep normally but not the computer. Does someone have the same issue? I uninstalled the wireless utililty of istat pro because i heard that it was making some problems. But for the rest... no idea. I also tried with bluetooth and airport disabled. It just doesn't want to sleep anymore... thanks.