certain user names won't allow login

I can't login if a user has ALL caps as their username.   I can create it, but it won't let me log in.

Help

There should be another problem maybe with your configuration. You should be able to use user names in upper case without problems, they are not case sensitive.

I have the EXACT same problem. What configuration items should we use? 

I also have the exact same problem. What configuration items should we use?

Do you use accented characters in the user name? I couldn't reproduce the problem but I guess it may be related to your server's locale settings.

I have sent you an updated file that may fix your problem, let me know the results.