I've got a standard-config MBP (2.2 Ghz) and ever since new (bought it from an Apple retail store on 8/12) I've been having problems with sleep. I ran a couple searches but didn't find anything in the results that would help me so I have to start a new thread. The problems are as follows: (1) I can't manually put the machine to sleep, either through the blue menu or through the keyboard shortcut. (2) If the machine goes to sleep automatically w/o an app running, I can't wake it up my any means. (3) If the machine goes to sleep when I have an app running (iTunes most of the time) sometimes it'll wake up, sometimes it won't. (4) It doesn't matter whether I'm on the AC supply or on battery--behavior is the same either way. (5) I've tried any number of setting combinations under Energy Saver in System Preferences but none of them made a difference. What I've tried to fix it: (1) While on the phone with tech support, I reset the PRAM, ran Disk Utility, and did some other diagnostic (can't remember what it was--sorry...) but that didn't fix it. (2) Since then, I've reset the PRAM again but that didn't help. Since I'm pretty much by myself (nearest Apple store is 1:45 away), I could appreciate some guidance on what else to try. Thanks in advance for any help.