No, removing the drivers is not the solution -> It doesn't worked for me.
I downloaded the new tools according recommendations of SAM and installed these -> problem was gone.
I reinstalled a new server with default VMware tools -> same error -> blinking not accessable screen
Reverted to SAM's solution -> problem solved.
used iso VMware-tools-windows-x64-8.6.5-621624.ISO
Thanks SAM,
cheers.
Jan