During the Campaign maps, I've noticed that the Drengin will approach me with what is identified as a 7 ship fleet.  So I create a fleet that will match them.  Then, when they attack, the fleet morphs into a 30 ship fleet, and I get wiped out!  Is this correct behavior?

Also, I just loaded a saved game and the galactic background when from the pretty blue-black-purple spacescape to an awful bright orange.  I couldn't even see any anomalies against it.  When I reloaded the game again, the correct background returned.