Sorry for the trouble, CPG - it'll probably be easiest for us to help if you send email to omnigraffle@omnigroup.com or give us a call at 800.315.6664.
(Since the printer drivers that are being used are have a pretty strong effect on issues like this, it's often difficult to troubleshoot something like this via forum post; we generally need to get screenshots of Page Setup and the print panel, or ask you to read stuff off to us if we're on the phone.)
(Since the printer drivers that are being used are have a pretty strong effect on issues like this, it's often difficult to troubleshoot something like this via forum post; we generally need to get screenshots of Page Setup and the print panel, or ask you to read stuff off to us if we're on the phone.)