Adobe Acrobat Reader was not detected

I'm having an issue trying to create reports.  The troubleshooting says switch the reports from HTML to PDF to see if that is working.  I installed Adobe Acrobat Reader - restarted the server.  Still getting the message when I click on a standard report. 

The report preference is set to PDF; however, Adobe Acrobat Reader was not detected on this computer.

BackupExec 2010 R2