I updated my PM G5 to iTunes 7 yesterday and since then I'm unable to connect to my airport express remote speakers (AirTunes). The airport express remote speakers show up in the output menu (bottom right of iTunes window), so I know iTunes 7 sees them, but I can't select them. Meanwhile, my wife is still running iTunes 6.0.5 on her iMac G5 and can connect to Airtunes without any problems. I've reset the airport express, my wireless router and my Mac. I've uninstalled iTunes 7, deleted the preferences files and tried to revert to iTunes 6.0.5, but the previous version won't recognize my music library, since iTunes 7 updated the library format. The I did a fresh iTunes 7 install again and did a permissions check. I even tried turning off my firewall. No joy. I've checked the Apple support forums, but I haven't seen anyone else reporting this problem. This is driving me crazy! It has basically rendered my main music library useless. Any ideas???