caveat from the msdn site...
Windows XP theme support is currently only active for the blue color scheme. If you attempt to run an "Avalon" application on a machine with silver or olive green color schemes, the window will display as a black rectangle. As a workaround, you'll either need to switch back to the default color scheme, disable theme support entirely, or alternatively make a copy of the following file:
\Windows\Resources\Themes\Luna\PresentationFramework.Luna.NormalColor.FxStyles
To: \Windows\Resources\Themes\Luna\PresentationFramework.Luna.Metallic.FxStyles
Or: \Windows\Resources\Themes\Luna\PresentationFramework.Luna.Homestead.FxStyles
curious what if any impact running WindowBlinds has.