I just got an Windows update, .NET framework 4.5 and I have the interface back on my desk.

Same here, this morning very thing was fine and now no Action on my desktop and grey videos.
I deleted every thing from the HDD and reinstalled Action but no difference. I use Windows 8 x64.

I always Alt/tab out of the dx9/dx10 games when the intro runs and than click Action and go back to the game. I don't have problems with DX11 games.

After the latest update there's a stutter when I record a game play.