Hi - I'm having the same problem, but worse. I'm not able to lock my computer or get the screen saver password to work. It used to work, on resume I would have to enter my user name and pw - but now, it just goes back to my desktop. I tried locking my computer, but nothing happens when I use the keyboard shortcut or start menu drop down ... help!!
At least my bootup/logon requirement still works ... but probably only because I'm attached to the domain.
I'm running windows 7 enterprise 64-bit.