Login problem

Hello,
i am a newly registered member for the past 3 or 4 days. after all the necessary filling up of the needed information, i am now a member. however, the next day after registration i tried to login my account on facebook but to no avail and until now i encounter the same problem. as far as i'm concern, i enter the correct address and password. can you please help me to find solution so that i can have the chance to explore the facebook is offering for all of us? thank you very much and more power!