I have a nvidia GTX 280 1GB card and I'm flying FSX. I have noticed two funny things while flying. At airports that have the green and white beacon lights, the green light is just a green solid cone and the same for the white light. This is as I taxi by them. Another funny thing is that the water has what looks like grid lines from about 5000 ft. Any ideas what is going on? By the way, this just started doing this. I have 182.08 driver for the card.

I've seen some rendering anomalies with "green flashes" in various games on my GTX 285 and recent 180 series drivers. I think it's just a driver issue.