This has been going on for a while now, and I was wondering if anyone else has similar issues. I have my computers set to ask for my password when I wake them up, or after they've been in screen-save mode. It seems like at random, any one of the four Macs I use on a regular basis will just stop asking for the password. I just took my main work Mac out of screen save mode after it had been like that all weekend, and it didn't ask for the password. I repaired permissions, went into security and unchecked/rechecked the "Require password to wake this computer from sleep or screen saver" button, but no luck. Does this happen to anyone else? I would consider the possibility of it just being a bad install of OS X, but it happens on all four of my computers at random?!