You are correct, the rescan option was turned off. My new music category has been static for quite a while, and the CDs from my last ripping session can not be found. What a stupid default setting.
While searching thru the server settings, I did find a rescan option. There is a "look for new and changed music option", "clear library and rescan everything", and "rescan playlists" options. This should be on the home page IMHO. I select the first option, and cleared out old stuff from new music, and added all of the new stuff!
Thanks Much! I had been looking in the help system and could not find it! And I never would have thought to look in plug ins!