I am having the same problem as the title of this post. I cant get any of the published maps from my server to load as a basemap.
Everything is on the same machine (ARCSOM/ARCSOC/ArcServer 9.3.1, SDE, Maps, Data, etc) so I do not believe a crossdomain xml file is necessary.
I am only trying to add one basemap and no operational layers; projection shouldnt be an issue.
I can add basemaps from ESRI and other ones (like pfrey17's)
When I try to add one of my services, I get a blank map (see attachment)
All services are listed in the services manager and are functioning.
Any suggestions?