My Cubase 6 has suddenly ceased to display a window for F11/VST Instruments (under Devices). Despite a re-install and my synths and drum machine being right there in VST Plugins where they always were.
Anybody got any hints?
Just making sure… you reinstalled your CB 6 software?
Regards. 
All is good!
Found the VST window hidden under my Windows task=bar at the bottom of the screen.
Thanks for your interest.