Oh yeah, I had that happened to me last week. Thought it was just me. The battle would resume once media player stopped. Anyways, the AI is terrible on this, even on "Impossible" they are easier than the easiest setting on the desktop version. They never try to attack, you can just gallop around right around their castle and take over their resources while they waste half a week before they try to take those resources back. Oh and I found that even though they build up their strongest unit, they rarely use them. Playing the bigger maps, some times I take over castles and find like 30 black dragons or titans just sitting there..