Ok it was a bad Idea not to post the URL where I got Duke3D why should
anyone help me befor I will be so nice to help others ... here is the
URL where I got Duke3d:

http://www.downloads.ch/files/games/action/545.asp

You zave to download the files, to unzip them, thene joind all
Duke3d._1 Duke3d._2 Duke3d._3 Duke3d._4 Duke3d._5 to duke3d.all
than extract a zip file from duke3d.all with exe2arc ( from the XAD
packeage in Aminet) the unzip it and than you will get a nice crash
when you start Morphosduke3d ... Does anyone has an idea ?