Ive noticed that on ubuntu 11.10, the popups in banshee that come up and say the song, and show the album art, have gone away on my system... Is it a glitch or was the feature removed? And is there any way to get them back?
With Banshee open go to Edit -> Preferences and ensure you have the checkbox enabled to show Banshee in the sound menu.
Ensure you have enabled the Extension as well.
Once this is done you should have the on screen notification show up when the track playing changes, one thing to note is it works best when Banshee is minimised to the Unity Launcher.