I was trying to install http://bubblesoftapps.com/bubbleupnpserver/
and ran:
wget https://launchpad.net/~bubbleg…eupnpserver_0.9-1_all.deb
now every time I try update manager or to add a plugin I get an error:
WARNING: The following packages cannot be authenticated! (for every package it tries to get)
Anyone know how to fix this? From what I've read so far, there may be a problem with the keys?