I have my iTunes library on my NAS to enable me to play music via my HTPC and sync via the mbp. Unfortunately, after iTunes 8.2 update, everytime I open iTunes after it had been opened previously by the other machine, it displays a window with "Updating iTunes Library". While annoying, it goes away rather quickly on the PC as it is connected to the NAS by gigabit, however on the mbp this is done over wireless and takes an extremely long time. Anyone have any similar issues with a solution? So far, adding a few songs to the iPhone has taken over an hour.