Do you get the same result with GETDYNAMIMAPOVERLAYIMAGE? GETMAPIMAGE pre-fills the background with the Map Definition's background color - Jackie -- View this message in context: http://osgeo-org.1560.n6.nabble.com/GDAL-MapImage-with-stripes-tp5016254p5016595.html Sent from the MapGuide Users mailing list archive at Nabble.com.