so the problem is driver 7.20?
p.s. i have the same problemwith driver 7.20
I highly suggest everybody to update to the latest 7.40 build via autoupdate or direct link on SoundGraph site as this is the most stable version ever.
My old VFD with 0x80 firmware that needed the V3 dll option enabled, now is working fine even without ( DisplayType for me must be in "autodetect" mode ).
Good luck
Simone