I decided to install drivers for my ATi card few hours ago, and after that, I just can't log in (it was weird, because I always got loged in automatically). There are 2 options to choose: "Dario" and "Guest". Both of these accounts don't work. I'm sure the password for my account was always entered correctly, but it would just bring me back. I've done some research, and other people were able to get it working by pressing Ctrl+Alt+F1, loging in, and deleting Xauthority or something like that. It doesn't work for me. I think the problem is my username. I'm sure it was"dario", not "Dario". Even loging in from Ctrl+Alt+F1 fails if I type in "Dario". If this really is the problem, then how to fix this? Or is there anything else that's causing this? Oh, and I removed the driver, just to be sure.