Can't login as no user names visible

[Alan]

I'm running a new installation of XP Pro but as a
standalone pc. I should mention that it was also upgraded
to include SP2 (beta) and then further upgraded on the
Windows site. All was Ok for few days then suddenly, I
can't log in. The Login screen shows on left "To begin,
click your user name" but in right half, where the names
should be, there is nothing !

I tried pressing CTRL+Alt+Del twice (as another Microsoft
response refers) and can see the classic username and
password boxes but whatever I put in them, only
returns "The local policy of this system does not permit
you to login interactively.

Thanks for help Guys
Alan

 

[=?iso-8859-1?Q?Gr=E9goire_Thevenot?=]

I encountered exactly the same problem : it seems that
users have been dropped ... SAM hive seems to be empty

Found no solution ...
Look at my message in the security & administration ng.

Greg.