I was screwing around and trying to add some environment variables to my path. I must have made a type or something because once I logged out, I could not lob back in. I know I'm not on caps lock or anything and in fact if I type the wrong password I am informed of this. However, when I type the correct password the desktop starts to load and then loops back to the login prompt.

There also no other users on the machine for me to log in as other than guest which does not have the right permissions for me to fix things. Any ideas on where to go from here?