Projector not loading swfs?

OK. See what you think about this. I appreciate any help.

In MovieA.fla, I loaded MovieB.swf to a mcTarget in Movie A using
the loadMovie method. I published and ended up with MovieA.exe
(projector file) and MovieB.swf. All files are in the same folder in
the same location.

When I test it, here are the results:

When running the files from my PC:
-All files on my hard drive and running the projector file:
MovieB.swf loads into MovieA’s mcTarget, no problem.
-All files on a network drive running the projector file:MovieB.swf
loads into MovieA’s movieclip, no problem.
-All files on the internet running MovieA from an HTML file:
MovieB.swf loads into MovieA’s movieclip, no problem.

When running the files on everyone else’s PC at my company:
-All files on their hard drive running the projector file: MovieB.swf
loads into MovieA’s movieclip, no problem.
-All files on a network drive running the projector file: Movie A
runs, but does NOT load MovieB.swf
-All files on the internet running MovieA from an HTML file:
MovieB.swf loads into MovieA’s movieclip, no problem.

What in the HECK is causing the projector file not to load the
MovieB.swf when running on the network from everyone else’s PC???