I’m running Nuendo5.5.5 in 64bit mode and Maschine 1.8.2 in 32bit VST mode in Windows7 64bit.
Opening the surface of Maschine displays right, but if I move the mouse over the Maschine-surface it deletes the content of the Maschine userinterface.
If I run Maschine as standalone software everything is allright.
I do not know if this is an issue from Maschine or Nuendo. But I think it is no problem with graphicsdevicedriver as the standalonemode runs well.
Here is a screencast where you can see the behavior. The graphics is as shown it’s not caused by recording the video.
I also tried Cubase6 32bit and Maschine 1.8.2 in 32bit VST mode in Windows7 64bit. There was no problem.
So I guess it’s a problem based on Nuendo5.5.5 64bit.