VISTA TEMP. ACCOUNT FTW?!

So randomly a couple of days ago, after putting in my password at the main
login screen for my user account on vista, the only one on the pc besides
administrator, the login took alot longer than normal, and after 30 seconds
or so it logs into a default desktop saying it was unable to load my user
account. I checked the users folder and my account and all my stuff is still
there, why is windows loging into a temp. account?!?!?! It is very
frustrating because every program needs permission to run again every time
you reboot, no settings save, it is basicly like having to reconfigure
windows and programs from scratch every single time you start up. any help
would be awsome!