I can not get my shapeways creator to work for either the shapeways lightpoem and/or napkin ring. I checked and followed the steps on the tutorials and wasn't able to fix the error. I tried to uninstall the program/file and wasn't able to. I also have tried redownloading the file/program. Please let me know how to fix this problem so I can get one or ther other ordered. thank you for your assistance.