sql2005 connect dialog window - how to not remember username?

[Rich]

I logged into my sql server (2005) from a remote computer that has sql2005
tools --in sql server authentication mode. I left the remember password
checkbox unchecked. When I re-log in from this remote computer the password
box is blank but the username box still has my username. Is there a way to
clear out my username from this box - such that the connect window does not
remember my username? Would this be a registry thing?

Thanks,
Rich