OK, as I said earlier I have;

Vista Home Premium
8800 GTS with the most current driver.
DirectX 10 &
FSX Deluxe with Acceleration

When I click on the DX10 preview I get horrible jaggies. It is like my AA is completely turned off. I have set my NVIDIA control panel to max AA and checked the box in the game. I have tried all the combinations I can think of. How do I get DX10 to look as it should? Is there a tutorial on here somewhere? I did a search, but could not find anything.