iTunes messed up
Following the latest update my iTunes has been completely screwed up. I hold all the media on my NAS drive and this is set as the default library. Now though I can only see the tracks I ripped off CD's years ago and nothing I have ever downloaded. Also lost visibility of all the apps we have accross numerous ipads/phones/pods. A bit of investigation on the new look led me to an icon in the upper left which is a music note in a box. When you click on this it shows two options "This Computer" and the name of my NAS which has a check symbol against it. However when I click on This Computer it goes into a mirror version of iTunes which appears to hold its stuff on the macbook's drive. When I revert to the NAS option and go into the store, it gives me an option to redownload everything I previously purchased (music/apps). Trying that it does download, but not to the default NAS library, they go into the mirror one. I have checked in Preferences and it definitely is set to the NAS path.
How can I permanently disable it using macbook drive for any media or App ?