My mac pro desktop has had issues manually going to sleep ever since the 2nd week I've had it (purchased in March). I have been putting it to bed using the keyboard shortcut with no problem. Unfortunately, I have recently lost the ability to wake the computer up from sleep. If I put it to sleep I end up having to reset it from the power switch, which makes it pointless. I just read a blog where the author claims to have fixed his sleep problems (which differ from mine) by moving the hard drive to a different bay. Has anyone here tried this? If so, did it work? I have never messed around inside a Mac before (except to blow dust off the components) and I don't want to risk messing things up doing something that will likely be fruitless. Thanks for you input.