menu goes blank

[vgage]

has anyone had the problem where if you have your menu displayed that is disapears at some point during your flight. And when you hit
the alt key to bring it back fs9 just crashes to desktop.
I notice that if I go out of fs9 to check mail while fs9 is running in the background that this occurs sometimes, not all the times. Could it be
with certain add ons, such as Radar Contact? Fs Map?
Should I just leave it in full screen mode and only hit alt key whe I need to access the menu? I have a new monitor and vid card so I can
do it with out frame rate hit. I aslo have a card that suppots two monitors which I use to display moving map and gs display.
Like I siad it does not do it all the time. i just did a flight from RKSS to RJBB without time xcel for a change. AS I was coming in for a
landing..poof menu gone. I landed, Taxi to gate. Shutdone, parking brake and open doors. As soon i was told by fsp that passengers
were off and I an end flight. I hit alt key to access fsp menu and game crashed. I have the add on Japanese airports vol1-8. Very nice I
must say. However RJGG is a new airportso you have to add it for fsp and for ai traffic if you are using just flight or my traffic.
So if anyone has some advice please feel free to tell me. I like to say sorry if this gets posted in the wrong place. Please forgive me now.
Vincente