Night flight mission starts as a normal flight, not as a mission

Hi folks,I tried to use the Night Flight mission. I am sitting in my Cessna 172 cockpit on the apron, but the mission won't start. So on pressing ESC I am presented with the usual "end of flight" menu (see image below), but not with the "mission objectives" dialog you would expect for a mission. This is the first and only mission (I have installed quite some dozens) that this happens. Can anyone give me a hint to where I should look for the problem? What could prevent a mission from loading or starting? - Ah, yes, I have re-downloaded the mission, even installed a version the author has sent me personally...Tia,Robin Hutter <>http://forums.avsim.net/user_files/178947.gif