logon window--me and Mr. post.office

[mgw]

Here is a benign but frustrating problem after doing an upgrade-installation of Tiger. Everything works fine, but the logon window shows my name and picture, followed by two other "users": Post.Office and Other, each with generic icons.

These "usernames" don't appear in the System Preferences Accounts section. Is there anything I can do apart from a clean installation? (I've got too many deadlines this month to do anything radical or time-consuming.)

I've searched for a file called Post.Office without luck. Is it an invisible file somewhere that I can just erase??

Michael
Yokohama, Japan
Mac user since SE-30. Currently using G4 laptop / 1.25 GHz / 1 GB memory.

 

[Tommo]

Don't know about the Post.office one, but other is just to bring up the username and password boxes so if necessary you can login using the root account or a network based account.