"pg" stands for "Paul Golding" ...those gauges were developed for a
prior FS B707 and most likely will not work in FSX, as I recall.
It seems that others have sucessfuly downloaded and installed
the B707 version you are having problems with.
Perhaps it is best to delete it and start the installtion process
over again. Be SURE to place ALL gauges for that installation
in the aircrafts PANEL folder. That way there is no chance that
another version in your main GAUGES folder will cause problems,
unless of course the panel.cfg file is in error.
Paul,
I think I'll retry that install and let you know...but those older gauges by Paul Golding are most likely the culprit.