No tracks from iTunes Match show in iTunes locally
I've been an iTunes Match subscriber right from the start, and have almost 7,000 tracks in there. Everything works fine under all our iOS 8 devices and my Mac Mini. I recently fixed up a 12" PowerBook G4, running OS X Leopard 10.5.8 and iTunes 10.6.3. The PowerBook has no tracks in it's local Music Library. With iTunes I was able to authorize the PowerBook, see it as one of five authorized computers, turn on iTunes Match, scan for music, and update Genius. iTunes Match shows under iTunes Store in the lefthand sidebar. Everything appears in order EXCEPT none of the 7,000 tracks (which I know are in iTunes Match) appear under the LIBRARY / Music folder. Also, under menubar Views the item for Column Browser is greyed out. So, when I click on the Music icon, I don't see any columns - just a default HTML page titled "Music" which shows links to video tutorials for "Download music", Import your CDs", and "Find music files".
Anyone have an idea? TIA.
PowerBook, Mac OS X (10.5.8)