Mountain Lion won't let me sign into my user account
Hello all, hopefully someone can give me some advice for the problem I'm having.
My MBPr won't let me sign into my user account or the guest user account.
I'm running Mountain Lion, I've tried resetting the PRAM and changing the user name using the Terminal app in the Recovery partition.
I am typing the correct password it just seems like it's trying to log in and then kicks back out and "refreshes" the login screen.
Anything else I could try before I do a reinstall?
MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)