When I click on Geo Vistors on my site, it only shows one marker. I've tried having friends go to the site from different parts of the country but it still only shows the one marker. Below is my site address. Please let me know if I'm doing something wrong. http://www.mccordcommunications.com
Works fine for me when I go to your site and then click the Geo Visitors button. I show 9 pins on your map.
Are you sure you are doing it from exactly the same URL you posted above (maybe your site can be accessed from other URLs)?