Hi Richard Relph,
Do you have any other PDF-printing type software installed with Windows 7 that might in some way be "competing" with the progeCAD PDF (like Adobe PDF printer, etc)?
What happens when you try to bring up the progeSOFT PDF Printer properties box from within progeCAD? Have you tried simply printing a test page from the PDF printer?
Have you checked the Windows "Event Viewer" for any errors?
BTW yo can always try re-installing this printer as systems administrator, delete the existing progeCAD PDF printer(s) and re-install from:
C:\Program Files\progeSOFT\progeCAD 2010 Professional ENG\PDFADD\install.exe (default location)
progeCAD support, tips and troubleshooting forum. progeCAD works very similar to some versions of AutoCAD. Moderated.