Radeon X800 Pro

I just removed my Nvidia GeForce FX5500 video card and replaced it with an ATI Radeon X800 Pro 256MB card. I downloaded and installed the latest ( v7.5 ) drivers.When I start FS9, I see gray planes, white runways and taxiways and the sky textures aren't right.When I start FSX, I see black planes, runways and taxiways, not gray. On one aircraft, I saw colors on one side of the plane, while the other side was shiny aluminum.I've been playing with hardware settings, but have had no luck getting things right. Everything looked and worked fine with the GeForce card earlier today.Any help or suggestions will be greatly appreciated... ...Steve2.20 gigahertz AMD Athlon 6464 kilobyte primary memory cache512 kilobyte secondary memory cache1024 Megabytes Installed MemoryWindows XP Professional Service Pack 2 (build 2600)TDK DVDRW880N