User logging in creates odd profile name

[Jason]

Instead of creating the usual profile name consisting of
just their username. Win2k Pro SP3 logging into domain
creates [username.domain] profile. No other users are
affected and happens on multiple computers. Why?

 

[Dave Patrick]

On your newly-joined-to-the-domain PC if you logon to the pc first, then to
the domain you would end up with two profiles.
%username%
and
%username%.%userdomain%
Else if you logon to the domain first, then to the pc you would end up with
%username%
and
%username%.%computername%
There's really nothing to fix as this is normal, expected behavior.