The launcher loads up, it then tries to load the start of Minecraft where the Mojang logo shows it then crashes. This is on the Minecraft Launcher 1.5.3

Put the summary of the bug you're having here

The launcher is supposed to load up, then i press play, the it open minecraft and i am able to play.

The launcher loads up, it then tries to load the start of Minecraft where the Mojang logo shows it then crashes.

Steps to Reproduce:
1. open minecraft launcher
2. press play/ play offline
3. it then takes a while
4. it either crashes straight away or it tries to load the Mojang starter page and the crashes