I just installed fsx gold. I ran the game and all seemed fine until I tried any Bell Helicopter. In free flight and all missions, the bells have no color or details to them. It's just a black box with a pilot inside. The rest of the game seems ok. Any thoughts on what's going on? Ps, I have a clean machine with windows 7. It has more than adequate graphics card and speed. It ran 2004 without any problems.