On the off chance that you have one of the affected graphics cards, Ted, this may help:
in the file "aircraft.cfg" in the "ehmv4-fleet-B1900D" folder, you'll find a line that says:
panel=B1900-1
//panel=B1900-2 //alternative panel
Change the "1" in "2", and you will use a different set of gauges, that was shipped along with the PAD product, because of some incompatibility issues...
Just make sure you have the "panel.b1900-1", and "panel.b1900-2" subfolders, filled with gauge files (*.gau + *.bmp) under the main B1900D folder first. If not, copy them from the temporary installation folder like Alexander said.
It's a slim chance, but if it works, it works!