Excel Geography Map - Problem Displaying Revenue by Zip Code

Hi, I'm trying to map revenue by zip code.  I'm connected to Bing.  The zip codes are being recognized properly.  But, my revenue column has a bunch of ?'s in it (every cell.)  However, there are some points I can find on the map which show me, for example, Series 1 Point "65360", Value: 565.96 which is correct.  But, the points are very small and not displayed well.

What is going wrong?  What do I need to do?