I've had Dark Cusade for months with no problems. But recently, when I start the game it loads up in a window, rather than going to full screen. I can maximize the window and still play the game, though it lags more than usual. I have no idea why its started doing this, I haven't made any changes to the game or my computer. I've gone through all the game options and settings I can find to try and make it open properly but nothing so far. I'm sure I'm missing something really simple - any ideas?
try running the graphics config tool there is an option in there to run the game in a window, just unclick it.