[RCCCL]

What version of the game are you using. I remember this happening to me once, when I first started playing, before I downloaded the patch. When it happened to me I did as Geoschmo suggested, and learned that for some reason the game had produced a couple empires with the same shipsets. This seemed to confuse the game some how and showed me combats that had nothing to do with me, and on occasion it would cause the computer to controll my ships.