Because of problems caching the 2013 Aerial imagery KGIS has switched back to the 2010 Aerial as the default Aerial map theme. If you want to switch to the 2013 Aerial you can change map theme by clicking on the Maps tab, next click on Historical Aerials drop-down arrow to the right of the word Historical Aerials, then click on the circle to the left of 2013 Aerial. The 2013 Aerial imagery is a cached map service and during the caching process KGIS has been experiencing some problem areas in the 2010 area and the regional counties areas. KGIS hopes to have this problem fixed in the next couple of weeks.