MineCraft Crashing

With somehow of the new minecraft launcher, whenever you go into a version, past 1.6.1, minecraft will not fully load, and with automatically crash.
Once exiting out of minecraft, the launcher will come back up, saying "The Game Has Crashed, etc etc"

I am wondering if this is a technical issue, or just me.

I would like to know if you/me can fix it, because I really want to play Alpha again.