there should be an*.obj file in the zipped file you dl. this *obj file must be placed in a certain folder in the " geometrie" folder , otherwise he cant be found. normally there is a readme in the dl where to put it. otherwise you have to open the *.cr2 file that is in the dl with a editor( wordpad....)and on top of the file you can read where the *.obj file should be and how he is called. make shure that the obj-file is in this place