http://emps-world.net/forum/index.php?topic=8805.msg65790;boardseen#new

It happens sometimes if u hit accept in the right time. It is like if you hit accept on the first screen before opponent like 0,5 secs and in the other screen u w8 like 3-4 secs after the opponent have klicked accept.

Not sure about the time, but it happens sometimes like this, ive done it many times.