Account lockout

[Red]

I am running XP Pro Version 2002 with SP1.

My machine has two accounts, "Red" (Admin) and a User account for my girlfriend so she cannot screw anything up.

Every once in a while, my admin account "Red" will get locked out. It's not because of incorrect logins or anything - I am certain of that.

Once I reboot, instead of my admin account, the default "Administrator" account shows up on the logon screen. I have to log in and do a system restore to get my "Red" account back.

Does anyone have any ideas what could be causing this or what I should check?

I keep my system updates current and this just seems to happen at random times - no new software/hardware installations.

It's a minor inconvenience, but it's irritating.

[glc]

Is the "Red" account set so the password never expires?