I have changed the sleep mode to hibernate - i.e. - RAM is written to the disk and the computer completely powers off after hibernation. When I turn it on it is restoring RAM from hard drive. This mode is very convenient for my needs. But one very annoying problem - whenever I disconnect (or connect) the power cord it wakes up. Has anybody had this issue, and is there a way to eliminate it? It wasn't always like this. I suspect after one of the MAC OS updates it started happening.