Version 1.5.2 goes to splash screen (MOJANG) then goes black and locks up. Only way to close window is to use task manager. Can't enter game.
Linked issues
duplicates 1
Comments 2
33rd Duplicate of MC-589, please use the search function to see if your bug has already been submitted. Currently over 57% of tickets are being closed as duplicate.
Download the new Launcher from https://s3.amazonaws.com/Minecraft.Download/launcher/MinecraftDev.exe and report here what's written in the development console.