I got round to upgrading my desktop system to Gutsy today. I'd upgraded my laptop the previous week, so was not expecting much in the way of problems.
I'd done the original install on my desktop back in the Warty days, and the root partition was a bit too small to perform the upgrade. As there was a fair bit of accumulated crud, I decided to do a clean install. Things mostly worked, but there were a few problems, which I detail below: