Hey Guys 
When you create or open a dashboard, the component properties window is black. Once you click inside it, the black disappears and the window display is restored. Everytime you switch/select a component this happens.
Same goes for the connection window: Switching between the connections = black window. Click inside black window = black disappears, normal display.
Functionality wise it's fine, just annoying if you have to click inside the window everytime, you can accidentally change something by clicking inside it.
PC' specs:
Windows 8.1
SAP GUI 7.2
Office 2013 64bit
Office 2010 32 bit (Excel, runs fine, according to task manager it starts up the 32bit version when you launch Dashboard Design)
Dashboards Design 4.0 SP6 (did also try 4.0 SP9 and 4.1 SP6)
SAP environment:
BW 7.3 EHP1 SP5
BO 4.0 SP5
Thanx guys!
Antonette