Dear Paul,
1. Does my system print a file to your default Windows printer when the
output print file is set to something like: e:\temp\output.ps ?
2. Does my system create an aribtrarily-named PDF on the Windows desktop
when you set the output file to something like: e:\temp\pdf.ps ?
3. When you double-click on a PDF file in Windows, does it automatically
open in PDF-Xchange Viewer?
If the answer to all these questions is Yes, then could you try
temporarily setting the free Adobe Reader as your default PDF viewer
(the application that opens a PDF file if you double-click on the file)
and try the PDFTEMP.PS output file again?
If any answer is No, please send details.