Cannot log into administrator profile

I have yet another problem w/ my pc. I own a newly purchased Dell Inspiron 531 s & I'm having trouble logging into my administrator profile. The guest profile runs fine though... Any solutions???

Check both links:

http://www.vistax64.com/tutorials/1...-failed-logon-user-profile-cannot-loaded.html

http://www.vistax64.com/tutorials/135858-user-profile-error-logged-temporary-profile.html