Mike, not sure if you got this sorted out, but the same thing happened to me. The issue for me had to do with the MinPS field not being set right on the overviews. The MinPS for each overview level should be equal to the MaxPS of the level before it. For some reason some of my highest-resolution (Level 1) overviews had 0 as their MinPS, while others had the correct value. When I fixed this everything showed up at the correct level. More info on these fields can be found here: http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//009t000001v2000000 Hope that helps, -Sherwin
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