Correction to my previous response: I tried to save as an 'obj' file. I do not have the option (in Bryce) of saving as a '3DS' file. My options are dxf, id4, lws, rds, wrl and obj. However, trying to export as any of these crashes Bryce and sometimes my entire computer. I'm trying to export by selecting the object, selecting 'E' (for edit) and clicking 'command-D', which brings up the export pull-down menu. It's at this point that I crash Bryce when I try to export.