#106 Menu bar disappears after volume is laoded

[Gerd Fritz]

See image.
Version 3.8.0-beta
This happens after loading the volume, before loading it looks fine.

This bug is actually known for QT5 applications:
https://discourse.slicer.org/t/missing-menu-items-from-slicer-application-main-window/2613
The resolution is updating the Intel Graphics Driver.

I am adding this Bug for others to find. Took me a while to figure oute.