flat5

I've recently had to add password protection to my LAN.
(someone else is temporarily sharing my router for internet)
All three of my computers use the same user and pass.
There are no other users, not even guest.
Two run Win XP pro the other Win XP Home.

On one machine (Win XP Pro) at logon the welcome screen waits for me to input
the password.

I want the other machines to do this instead of my having to use the mouse to
select the only user presented for me to select.

I have tried to Google this (admittedly very minor problem/annoyance) fix but
found no mention anywhere.

Have any of you dealt with this or remember a solution?

Thanks for your time considering this.