Vint
says
Borrowed laptop, but no admin rights, so I can't install the Internet. Wheeeeii! ;( Film night, anyone? :/
Prad
says
try hitting F8 on boot up, and setting up a new admin account in safe mode?
Vint
wonders
if it is that easy? I'd have to interrupt the movie! 
Confirms it's fail. Still asks if I'm Jon and remember my password.
Answered that the fact I don't remember my password is proof I'm Jon. Machine doesn't believe me. 
Tiyuk
shares
Try portableapps.com