Not sure what to try next, but I've created a mosaic dataset in Arc 10 and loaded SID imagery. I've built it with and without overviews. I've built the footprints both normally and radiometrically, and THEN rebuild overviews. I've defined the nodata for this dataset and ended up corrupting it.
Looking for ideas on how to get rid of the blasted white space around my imagery so that it's not blocking the imagery underneath...would like this to be a nice seamless dataset that I can serve up eventually.
Any ideas?