WPF + DirectX9 + ClickOnce

Hello,
Has anyone else had an issue with newer nvidia cards showing a black video? It’s strange that it only effects nvidia cards, and only the newer ones… even more wierd that videos will play fine when the app is started from its .exe locally. Just not when its started from a click-once link.

I’ve ruled out a lot of things already, and am running out of possible causes.