Mike,
Thanks for your help.
I agree that it is not a scale dependency problem or a firewall problem. I've tried many different scales and the fact that I can see the server using AG Explorer and Windows Explorer means it isn't a firewall problem.
I tried adding "rest" into the address, but I get the same results. I still can connect, and see folders and service layers, but I don't see the "Export Map Link" at the bottom of the screen.
The odd thing is if I add service layers that have different extents, when I right click on each service layer>go to, the map zooms to the appropriate scale. For example, if a service layer has data only for Baltimore City "go to" will zoom the map to Baltimore City. If the service layer has data for the entire state of Maryland, "go to" will zoom to Maryland. Nothing is drawn, but the map does zoom and recenter. Any other ideas?
Thanks,
D