Windows XP question

[SittinOnDubsWGW]

Alright, here is my dilemma, I've been away from my old condo for about 4 months, all the while my computer was there, so I just moved my computer over to my new apt. While setting it up last night I turn it on, and the screen where you choose username and password came up. The only time this screen has ever came up was the very first time I set up my comp about a year or so ago, I don't recall setting a password at that screen or I just completely forgot it.

I have never had to go to that screen since the very first time I've ever set up my comp, I'm thinking that it is a possibility that my old roomie put a password on it just to be a dick.

Is there a way around this?