I seem to be having trouble upgrading to Kubuntu 14.04. Yesterday I installed 13.10 for my brother in law. That machine told me a new version of Kubuntu is available. Kubuntu.org says 14.04 is available, but when I try to upgrade here, I get a message saying no upgrade is available. I've tried muon and sudo do-release-upgrade. Also /etc/update-manager/release-upgrades has Prompt=normal on the last line.

Any ideas what I can do to fix it?

Thanks

-- 
"I get my copy of the daily paper, look at the obituaries page, and if I’m not there, I carry on as usual."

Patrick Moore