Comment 31 for bug 55172

Adding Michael's PPA to my sources.list, then updating and upgrading with aptitude appears to have sorted this out on this machine.

The following packages have been kept back:
  synaptic [0.61ubuntu9 -> 0.62.1ubuntu1~ppa2]
The following packages will be upgraded:
  f-spot [0.4.3.1-0ubuntu1 -> 0.4.3.1-0ubuntu2~ppa1] friendly-recovery
[0.1.2 -> 0.2~ppa1]
  libgksu2-0 [2.0.5-1ubuntu5.1 -> 2.0.7-1ubuntu2.1] python-apt [0.7.4ubuntu7
-> 0.7.5ubuntu2~ppa1]
  update-manager [1:0.87.27 -> 1:0.91.6] update-manager-core [1:0.87.27 ->
1:0.91.6]
  update-notifier [0.70.7 -> 0.70.8~ppa1] update-notifier-common [0.70.7 ->
0.70.8~ppa1]

Thanks Michael.