I also am having trouble with Maya 13 and the update manager for KDE. On the Maya side everything works fine. On the KDE desktop everything works except being able to download the uindates. A box will come up "about no authorization" and I am unable to get the listed updates. I have removed and reinstalled Update Manager (Moen) several times and nothing has changed. Any suggestions as what to do? I do not want to switch back to Fedora, I like Mint.