Dear Gillian,
We sometimes experienced the -30 Error code to be displayed when multiple PDF Printing devices are installed on the same PC simultaneously.
We suggest that you examine your currently installed printing devices (accessible from the Windows Start menu).
After removing the installed PDF Printers, we suggest to completely re-install progeCAD 2014 Professional, disabling the Anti-Virus/Anti-Spam softwares.
Multiple PDF printers may affect the process disabling certain necessary parts installation. The software behaviour could be modified giving undesired results.