iTunes 9.01 released
About iTunes 9.0.1
iTunes 9.0.1 provides a number of important bug fixes, including:
* Resolves issues browsing the iTunes Store.
* Addresses a performance issue where iTunes may become unresponsive.
* Fixes a problem where iTunes may unexpectedly quit.
* Fixes a problem syncing Podcasts in playlists to iPod or iPhone.
* Fixes a problem sorting albums with multiple discs.
* Addresses an issue with the Zoom button not switching to Mini Player.
* Improves application syncing for iPod touch and iPhone.
* Genius is now automatically updated to show Genius Mixes.
I am downloading the 64-bit version as I type and will see if it resolves the installation problems.
Link to 64-bit iTunes 9.01:
http://support.apple.com/kb/DL925
32-bit iTunes 9.01:
http://support.apple.com/kb/DL927