New do install, unable to view pdf

Help & Support
1
  1. just installed do 9.5.6.0.3937 x86 on windows 7 ultimate
  2. applied license

any pdf docs that I attempt to view using lister view panel shows up as navigation to web page error

2

Do you have a PDF viewer installed? Which one?

3

And, if the answer to Leo's question is "Yes", you could try running a Repair on the reader installation.

That has worked for me when trying to recover the ability to create thumbnails, although I realise that this is not your issue.