Hi, I'm seeing a recurring problem that seems very "un-Apple" i.e. a clear problem, that affects usability, and that has been outstanding a while. I'm using Leopard + a MacBook. The problem is as follows: When restarting my MacBook from sleep, I get the usual login screen - enter password, and away we go - except I occasionally get presented with the same login screen again, so I re-enter the password, and then the screen goes blank except for the mouse pointer. It stays in that 'blank' mode until I close the MacBook, wait for it to sleep again, and start again, usually then I can login successfully. Very frustrating, particularly now that Time Machine / Time Capsule can now jump in and begin a back-up, so the machine won't suspend. Searching the web, I've seen reports of the problem going right back to Panther, but I've not found a solution. What gives? Thanks.