Got this support case, has anyone seen something similar:
This user experienced a blank black GUI when loading the plug-in in Cubase 5.0.1.
As he click around the interface, knobs and other parameters show up, but they could not be controlled.
The sound is played back ok as he was playing on the keyboard.
CPU: Core i7 965 (8 core processor)
Geforce 9600 Graphic Card
Windows XP Professional SP2 32bit