wpf window entirely black

Question

I sell a WPF application, on one customer machine (out of several hundreds) the entire application window is black, anyone know what's going on?

The machine is running Windows XP with .net 3.5SP1, the graphic adapter is GeForce 6200 with two monitors (disabling one monitor doesn't solve the problem).

Setting "Compatibility settings" to "256 colors" solves the problem (but it's not a viable solution, I need more colors for the app to look good).

The application is yaTimer ( http://www.nbdtech.com/yaTimer/ ), it has custom window chrome based on the techniques described in this post http://blogs.msdn.com/wpfsdk/archive/2008/09/08/custom-window-chrome-in-wpf.aspx in the "Office 2007 without Aero" section.

If anyone can give me a clue as to what's going on I'll be very thankful.

Thanks.

Answer 1

Sounds similar to the problem I had the other night and posted here:

Question: WPF - No Content Rendered

Check the video card drivers as one possibility

Answer 2

I had the problem with override the window template. I figured out that if you but the inherit window style in Themes/Generic.xaml it works. But in any other Resource you will get a black window. (VS 2008 - WPF 3.5)

Answer 3

Try installing latest DirectX package on the client machine.