The answer may be to install the motherboard chipset drivers from the manufacturer.
I have Vital working on Intel (R) HD Graphics. An old SVGA chip built onto the motherboard.
I had a working version of Vital. Then reinstalled a fresh copy of windows, installed VGA drivers, used a utility to check the openGL version which reported v3.1.
Vital did not work and displayed an error that I did not have OpenGL. I hadn’t installed the chipset drivers so tootled off to ASUS support for my motherboard and downloaded the last set of drivers. After chipset driver install, Vital awesome synth is back up and running.
Sneaky little issue that one. Would be good if it helps in other cases.