Launcher won't work

Put the summary of the bug you're having here

What I expected to happen was...:
Launch Minecraft

What actually happened was...:
There is a bug in LWJGL which makes it incompatible with OSX 10.5.8. Please go to New Profile and use 1.5.2 for now. Sorry!

Steps to Reproduce:
1. Won't even luanch.
3. ...