change username error message

When a new user is joining our site and they select a username which has been restricted I get the following message;

‘Your username must contain only latin symbols, numbers or underscore(_) or minus(-) sings’

Where can I find and edit this message to include the fact that the name they selected may be restricted?

Log into your admin, select Builders>Profile Fields.  Click on "NickName" and click on the Messages tab.  From there find the one you wish to change and change it.  There is a separate message for non-unique names that should be automatically set.

Thank you for the quick reply. It worked great.

Cheers,

I am getting the following error when I try to change the name from pplaut123 to pplaut.

See the attachment there are no invalid characters here.