Sorry if my english is not so good, I'm french. After launching minecraft, the game is locked at the title screen. I can't click on any button. After waiting a minute, I'm obliged to close de game with the task host. The game closes and a crash message appears, but no crash-report. After deleting my .minecract, and downloading again all the files, the game runs normally, but the bug reappears the next I turn my computer on. I checked my java version, and I got the latest.