You need to define maxExtent property within map object: http://dev.openlayers.org/docs/files/OpenLayers/Map-js.html#OpenLayers.Map.maxExtent -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/no-subject-tp6175970p6176134.html Sent from the OpenLayers Users mailing list archive at Nabble.com.