I had a similar problem yesterday (Friday), playing the Friant, and I lost most of the interface. I could control my ship, but I could only fire my torpedoes, and not my guns. I could not see any details on the map, and I could not tell who was friend or foe. I fixed the problem by accidently hitting the "Window Key", and upon returning to the game, all was OK again. I did not worry too much about it at the time, as I had been playing for a couple of hours without a problem. I did not have time to gather any details, as I was being stalked by a nasty cruiser.