Mediabay Previewer Playhead on desktop

Repro:

1.Open Mediabay (with or without a project loaded)
2. Play a reference track using the previewer
3. Minimise Cubase with mediabay still playing
4. Issue: Playhead from the previewer will apear moving on the deskptop.

This is reproduced every time with a dual display using built in Intel HD4000 graphics (latest drivers)