Altium 'forgets' window positions all of the sudden

[DutchGert]

Hey guys,


Since a few days I encountered something very annoying. Sometime sit seems that altium completely forgets the window and toolbar layout I am using and just randomly (or perhaps the defaults, don't now) applies a layour to my workspace/desktop (not sure what to call it).
Since a few day it also forgets the 'floating' screens such as library which I placed on another screen or keeps the floating screen on top of the main screen if I click the main window........  I am getting crazy