Crashing When Trying To Login

Put the summary of the bug you're having here

What I expected to happen was...:
What I Expected to happen was to login and play but when I try to login it just crash I tried to do it 5 times but it didn't work so am reporting that bug for minecraft 1.6.2

What actually happened was...:
What Actually Happened Was I crash when I login to my minecraft account and I wanted to play.

Steps to Reproduce:
1. type password then login
2. Crashed and try again
3. it keeps on happening