An earlier thread reported problems creating smart playlists that select tracks with rating of 1 or 3 stars.
I have found another problem. When creating smart playlists that use either the Date Added or the Date Modified fields and a specific date, the only date that can be entered is todays. You can change the date in the dialog, the playlist will not update properly and when the edit playlist dialog is reopened the date field will have reverted to todays date.
A work around that I have found is to change your system date to date you would like to enter, create your playlist and then change the system date back.
Anyone else noticing other bugs in iTunes 6.02?