I can't unlock my n800 after I choose "Lock touch screen and keys" from the power-button menu while in KDE. When I try to unlock it, I press the power button and it says "Now press [Square]" when I then press the square select button it says "Press the following keys one after the other: [Power] and [Square]" instead of unlocking. It doesn't matter how quickly I press the keys, or even hold them both down, it just won't unlock from KDE or after logging out of KDE until I reboot. It works fine from Maemo if I have not yet run KDE since booting.