PNG8 tiles won't be transparent. It's a bug: http://trac.osgeo.org/mapguide/ticket/743 - Jackie -- View this message in context: http://osgeo-org.1560.n6.nabble.com/MGCooker-and-tile-format-tp4191697p4464635.html Sent from the MapGuide Users mailing list archive at Nabble.com.