K, I did see you teleport - you're in my house now. If you log in again and still crash, then it is probably something wrong with your local install. It's also possible that you got a buggy item in your inventory. On other servers I've gotten ahold of bugged items that crashed everyone who looked at me while I was holding it. Edit: and I haven't gotten any server errors in the log, either, toher than the standard java socket error when someone crashes locally.