Seriously inching into my fun factor was a continuous crash to the desktop somehow relating to the navigator map, time acceleration, sighting the enemy and playing the radio all at the same time. This time I too had been tweaking my sound setup; also 5.1, with my onboard sound card (realtek compatible) who's connectivity options didn't match my surround sound speakers (Logitek), to see if that fixed the crash situation. You know the rest. I'l see in a while if the crashing has stopped... or I'l have to pick up the usual suspects again!