ANTONIO TRAPANESE at Italian site hardwareirc says he has now heard back from Microsoft about the problem with DirectX 9 that he reported at the end of December.
See DirectX 9 doesn"t fix earlier bugs
Trapanese said that he forwarded the information Microsoft and it has now told him the problem, Antonio, is not in DX9 itself but generated when it"s installed.
It can be solved with the SP1, by uninstalling FS2002, installing Windows XP Service Pack 1, and then re-installing FS2002.
If you are wondering what FS2002 is, thats Microsoft Flight Simulator 2002