Are you using the latest version of Ubuntu? Some of the streaming video/audio
sources updated and you may need the newer version of some players. I use Puppy
Linux myself and several months ago, I could not play a lot of previously
available streaming videos when I used Slacko, Wary and Lucid puppy Linux, but I
changed to Precise Puppy Linux with a newer kernel. all was well again. So this
might apply to Ubuntu, but I'm not even close to being an expert. But it's easy
enough to download and burn a a CD and try it as a live CD to try out and see if
it makes things easier