Hrm. Well there is a 'cool down' time at the end of a hosting. If you try to view your turn before it does that there is a chance it would lock up. This is especially true if you are on the server computer. It can also depend on your connection. I've had people who have dialup, get bad packet errors for no apparent reason.

So basically I'm saying "I've never had it happen like that" because most of the time I'm the server