Install and SQL login name

[Kieran Cooper]

I've got to the point in a single server installation
where I'm about to install the Project Server software.
It's asking me for the login details for the database
server. However, when I enter the details for the SQL user
that I previously set up which owns the two databases, I
get an error because the user name contains a space. I
can't just rename the user in SQL enterprise manager. I
can't create a new user with no spaces and then assign the
database ownerships (I don't think). Do I have to go
uninstall SharePoint and go back to that point or is there
an easier way??

Thanks
Kieran
Cambridge, England