This has been a recent problem I've seen. I get involved in an Enemy Encounter and I fly to attack an enemy ship but I cannot fire on the enemy. I press the buttons to fire but nothing happens even though the enemy can fire on me and I'm at "Red Alert". Then after a little while I will get a message that says "there is nothing on sensors" (ie. i went to far off the map or something) and it asks me if I want to exit the area.