hmmm.. well I think I kind of figured it out, we need to multiply the orginal resolution with the respective overview number. Thanks anyway regards. Imran On Sat, Jan 1, 2011 at 3:49 PM, Even Rouault <even.rouault at mines-paris.org> wrote: > Imran, > > You'd probably get more helpful advice on the geoserver mailing list. > > -- I.R