By default ArcGIS Explorer will automatically navigate to the extent of the content you add to your map. Don't like this behavior? Here's how to change it.

First, click the ArcGIS Explorer button in the upper left, then click ArcGIS Explorer Options.

On the Common options look under Map Navigation. Check Automatically navigate when content is added to the map off.

Now when you add content to your map your location will not change. To zoom to your newly added content just double-click it in the Contents window.