I'm trying to export Qcad's dxf files to pdf but they keep on hanging the application. Sometimes the application crashes. When I try to open the pdf's they are blank and their size is about 96 MB. They should be about 40 KB for the drawings I've been exporting. It was working earlier, but not at all now. I've not changed anything else on my computer. I'm running Qcad version 188.8.131.52 on Ubuntu 8.04. Can you help?