Well...I have successfully loaded my GPS many times with CitySelect maps and TOPO maps. Good point on which items should be selected. I agree. However, those items are checked. But, it won't hurt to try again.
My problem is once they are both loaded, I go into the GPS receiver into maps setup. Normally, you can scroll over and view the maps and check or uncheck them. With Cityselect and TOPO loaded, I see no maps listed in the drop down box, and I can only see the basemap on the screen.