<< haven't tried it (i have win2k and use Windows+L), but if it is a user problem try logging in as admin or another user. >>
How are you doing that? I have Windows 2000 and Windows XP, the Windows + L doesn't work with 2000. Unless you've found a hack somewhere that allows it to, because from my understanding (and actual experience) it won't work.
(Oh, by the way, happy 200th post to me!)