It only happened when I started the new game,after about 5 minutes. Also, I noticed that in the 'new' game, one of the villagers had an echo following her, in pixels. I hadn't been running the game continously for long, just that I was at a point in the old game where i felt I couldn't get any further. As it turns out, i was wrong! Should I install the new VS fix file read about in another forum? It sounds like my problem.