Just recently, I was starting up Garry's Mod 13 Beta to play it with my friend and Steam crashed. I started Steam back up, typed my Username and Password and about a second after pressing log in, it crashes. It wont crash till I click on it. I've waited a hour for it to respond, still nothing. I know it wasn't GMod 13 Beta, because I've played it plenty of times before this. I've downloaded the installer and repaired it. Will I need to fully uninstall Steam and reinstall? If so, will I have to reinstall ALL my games?
EDIT: It doesn't even go to the "USERNAME logging in" or whatever it says.
It crashes right at the Username and Password part.