10/13/08—The USA Prime Imagery 3D service, I3_Imagery_Prime_World, was updated to include more recent, high-resolution imagery. Updated imagery was provided by i-cubed for approximately 40% of the continental United States for this release. The updated imagery comes from a variety of sources, including recent NAIP imagery for several states (e.g., Washington, Nevada, Utah, Arizona, Wyoming, Kansas, Oklahoma, Alabama, New York,  etc.) as well as updates from Aerials Express for selected cities (e.g., Los Angeles, San Diego, Phoenix, etc.). This update was applied for the most detailed, large scale levels below 1:50,000-scale for the service.

If you have previously used this service, you may need to clear your cache in order to see the updates.

1. Click Tools > Options.
2. Expand Cache and click Disk Cache.
3. Under Cache Clean Up, select All Caches.
4. Click the Delete Cache button, and click Yes to confirm. ArcGIS Explorer will need to restart as part of this process.

How to clear the cache in ArcGlobe:

1. Right-click the service in the ArcGlobe table of contents.
2. Click Refresh. It may take several seconds for the cache to be cleared.