VG2 suddenly decides not to work?

Just this week I pulled up an old project into Cubase 7.5 which includes virtual guitarist as an instrument. Cubase doesn’t see it. As I’m on PC working in x64 I have been using jbridge to use the 32 bit plugin with no issues up until now. What can it be?

Decided to re-install blah blah. Get to the standalone version GUI comes up list of styles are in the box. Double click on any size in MB shows in the Chord box for two seconds then disappears. Nothing sounds.

Scratch of head!

What specific Windows operating system and version number are you running?