I have downloaded minecraft.... i can open it, log in, hit play offline than my screen goes black.

I am running an (dell) Alien Ware M15X laptop (So it's not my graphic's card)

64-Bit (not the issue, my friend is 64bit too and it works)

Have more than enough memory

Window's 7 (He also has windows 7)

I've tried re-installing, i've tried replacing the bin folder... what now?