What the heck -- stale turns

[bane]

Hi.
My friends and I have downloaded the demo, and we started several games served on various people's machines. Frequently, when I submit my orders, I get a message at the start of the next turn saying something like "Stale Turn. Your 2h file is too old. You have not sent any orders this Last turn." So I lose an entire turn!

Why?!

[Saber Cherry]

Everybody must submit their turns to the server before the "Host" button is pushed... if you do not submit the orders in time, you will get a stale turn message.