Upgraded from RH9 to RH11 Search No Longer Working

Hello,

Situation:

               Upgraded several projects from RH9 to RH11

               WebHelp Pro Output

               RoboHelp Server 9

Search no longer works for upgraded RH11 projects.  No matter the topic or keyword entered, results are zero.

Search works on RH9 projects.

I looked through forums for similar situations, I didn't find any for RH11.  Some solutions for RH10 said to verify the whfts file included all the xml packages and the RH11 output does.  Others had to do with settings in WebHelp but couldn't find anything specific to WebHelp Pro.

Any ideas?

Thanks,

Julie