yvonne wrote:After refreshing the Update Manager I successfully downloaded/installed all packages. I rebooted but the version of KDE did not update.
Not sure why not - I've done similar now have KDE. 4.14.2..
You could check using package versions using synpatic - if it did download many packages and install then sounds like it did upgrade kde - theres very little visual difference between 4.13 and 4.14 anyhow.
yvonne wrote:Also, since I originally installed Qiana KDE, why isn't the ppa included in the Update Manager?
Well kubuntu backports are really for the kde flavor of the ubuntu distro, they are not Linux Mint as such. I've used them in the past and have worked fine and reverted to mint repository when mint "caught up". I just perfer mint kde to kubuntu, even though I could get them to look the same (I have my own heavily customised desptop which I like to keep after each kde / mint upgrade)