On Ubuntu Oneiric, please try installing the libnotify0.4-cil package from https://launchpad.net/~hyperair/+archive/staging/+packages, then restart Banshee and see if that solves the issue.
On Ubuntu Oneiric, please try installing the libnotify0.4-cil package from https:/ /launchpad. net/~hyperair/ +archive/ staging/ +packages, then restart Banshee and see if that solves the issue.