thanks for your reply! I installed that plugin and found it quite confusing. So it did’nt work immediately; I’ll have to spent some time with it this evening.
thanks a lot; now it works!
I got rid of that second name by editing that field in the database (making it no longer required).
Now capital letters are possible, too: I had to change line 278 of the bp-core-signup.php from preg_match( “/[a-z0-9]+/”, $user_name, $maybe ); to preg_match( “/[a-zA-Z0-9]+/”, $user_name, $maybe );