! Crash on mission completed screen !

[Martian base commander]

I have just experienced my first crash in ages now,on the mission completed screen.I had just completed a mission against the robots and was waiting for the mission complete screen to finish loading and take me back to the geosphere,when the game froze at about 90%.Does anyone know the cause of this crash?.I have been playing since this morning,so the game may have suffered some sort of serious memory leak or my system was overheating.In the end I had to restart my system.

I really hope we are not seeing an annoying return to all the crashes that plagued UFOAS in the latter stages.My current campaign's date is about half way through July,if this crash is date related.

And,in case anyone cares to mention about this,I have the 1.6 patch installed.

 

Thanks for your help.