i think i found another bug if you login and do not type the username as the same case as when you signed up it will work and youll be able to surf but you migth have issues with your user name not displaying correctly when you post and you wont be able to edit posts (the edit post button will show up but when you hit continue you will get an error is this a known bug?
This is a bug that I also reported/asked about. We fixed it last week and apparently, it wasn't a big deal to fix. I'll get the fix from our VP of Technology and post it asap.
Turning it on DID turn it off, you're right. At least, that's what happened when we turned it on.
The name problem we decided to just fix it so that the name is the correct case at login by reading the username from the database at login (and still have non-case sensitive names at login):
main.inc.php
if (!$CheckUser) { $this -> not_right("$lang[NO_AUTH]",$Cat); }