Crash at start of Single Player Offline

Put the summary of the bug you're having here

What I expected to happen was...:
After selected the "Play Offline" button, expect the minecraft world to load. But the button should have only said "Play".

What actually happened was...:
Did not open world in full screen mode, on the crash dump

Steps to Reproduce:
1. Start Minecraft 1.4.4 launcher
2. Selected world
3. Pushed "Play Offline"