Okay, so I was playing InPvp and when I alt+tabbed and surfed the net I came back and got disconnected like usual. But after 2 or 3 seconds, I couldn't press the back to menu button and this weird pink and black screen appeared and my minecraft menu didnt appear. Pls fix! To confirm you this was from Minecraft 1.2 beta build 9. I have a good cpu and I don't think that it is related to my cpu or computer.