Hi guys, Although I just registered, I've been wandering these forums for quite some time now, however, just recently, needed some help... I got a friend's Late 2008 unibody Macbook, which had 10.5.8. She wanted some help on making a Time Machine backup, and install 10.8. I got her laptop, did the backup, installed a fresh copy of 10.8, installed the updates, and everything looked great, but before I continued with the installation of the other stuff, or transferring her files, I closed the lid, and went on to do some stuff. Came back to an empty battery... Then, doing some further tests, it turns out, the macbook wasn't sleeping properly. When I close the lid, it sleeps, and then immediately wakes up, same thing happens if I put it to sleep from the drop down menu with the lid open. I googled a bit and found this link: http://osxdaily.com/2010/07/17/why-mac-wakes-from-sleep/ Turns out it's waking up with reason: OHC1. The curious part is, there is nothing USB attached... From what she told me, it didn't do that before, but it is right now. I'm a bit baffled, and would love some help... Any suggestions as to what to look for next? Thank you so much for your kind help!!