[orca-list] Sonar does not like user name

[Glenn <glennervin cableone net>]

Hi,
I'm trying to install Sonar, and Close is the only option.
I had my son read the window, and he said that the message says that there 
is an invalid character in the user name.
It is a 4-letter name and I capitalized it.
I have done this in Ubuntu before, same name with no problem.
Also, part of the password has the name in it that is in the user name 
field, but again, I have done this in Ubuntu with no problem.
Is there something strange about the Sonar installation?
Thanks for any assistance.

Glenn