Overall, I was pretty happy with the Gusty to Hardy upgrade process. It was fairly straight-forward. One thing I thought was very confusing was a question prompting what it should do with menu.lst. It then gives options like "Keep the currently installed version" or "Install the package maintainer's version". First, many users will have no idea what menu.lst is or does. Second, even if they do know what it does, the options are not explained correctly (as I understand them) during the upgrade. Since many users have a Windows partition listed in their menu.lst, they want that to be preserved, so they might think they should "keep the current version". However, this means that the new kernel version will not be loaded (see Launchpad link). This question should better explain what will actually happen for each of the options. Many users who chose this incorrectly are currently using the Gutsy kernel, which breaks nVidia graphics drivers on upgrade (see forum post, there are lots). That's no good.