There is a serious issue involving teleporting to specific coordinates, having to do with a certain chunk. This will cause a client crash when logging into the server at those coordinates as well. For this reason, we are going to be on Minecraft 1.4.2 until this issue can be fixed.
Please downgrade to 1.4.2 if you want to play, as this won't work with 1.4.4 clients. It is
here.
Anyways, sorry for the issues guys. I wish Mojang kept on top of this, but they must have missed it somehow...
