When Curtis Chan installed iTunes 7.1 on his Microsoft Windows Vista machine, he noticed that a screen pop-up window would inform him that he does not have permission to write to the library and that changes cannot be saved. However, this only seems to happen when there are a lot of updates made to the library, instead of a few, he told MacNewsWorld.
Vista Glitches Still Bugging iTunes Users
Vista Glitches Still Bugging iTunes Users