PDF creation fails on Win7 with Adobe Acrobat installed

I have a user who has both Adobe acrobat and PDFcreator installed on their Win 7 32bit PC.  PDFcreator was working until they upgraded Adobe Acrobat.  Now when they try to produce a PDF file it gets to the point where you select the save location and then once you specify that and click Save nothing happens.  That window disappears like it normally would but there is no error displayed and no PDF file is generated.  I found nothing in the spooler or temp files.  Originally they were using PDFcreator 0.9.8 and we have tried the latest both with the same results.  I suspect a Ghostscript problem but I'm not sure where to look.  are there some debug options I can turn on to better track what is happening in the application?