Hi Mike,
Thanks for your reply. I tried those steps but was not able to get the map to open in ArcGIS Explorer Desktop. Before trying the steps I opened ArcGIS Explorer Desktop 10. I should note that I have not yet installed ArcGIS Desktop 10 - I'm still using 9.3.1.
I clicked on the arrow next to "Open" and chose ArcGIS Desktop 10. A "Open File" dialog box popped up, asking if I wanted to open or Save "item.pkinfo." I chose Open. After a few moments I received an error message for an invalid package. So still no go.
Why do I have to try to trick the software by opening Explorer Desktop but then choosing to open in ArcGIS Desktop? Shouldn't Explorer Desktop be a standard choice?
Thanks,
Allen