I logged off in a bedroom the other night.. I went to log in today and the screen was all dark. All I could see was the dot in the middle, and the quickbar at the bottom. When I moved my mouse, the cursor would be like an elastic band. Go a bit in the direction I moved the mouse and then snap back to the center. I could change between all my stuff on the hotbar ( could hear it, and "cancel action" would show up). Anyway, nothing I could do so I logged off. I tried to log back in, and it had me start over fresh on the beach.