No I didn't change the WMS-URL. But after you told me that, I changed ist. And now...IT WORKS!! Thank you very very much. -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/GeoExt-OpenLayers-IE8-vs-other-Browsers-tp5079946p5103843.html Sent from the OpenLayers Users mailing list archive at Nabble.com.