WMP not showing files on my Fuze that I just synched

Well, I _ really _ solved my own problem. I had the same problem with a 2nd card, so I realized that the problem wasn’ t the card, as I had previously thought. I started poking around WMP  & found this: I selected:
Tools -> Options -> Options tab.
From there, I highlighted the card and pressed the Refresh button, and viola! There’s the contents of the card.

Back to the 4gb card!