Not sure if this is going to be of any help but I am running Mint 5
(basically Ubuntu 8.04 with restricted codecs) and am able to access
ip[layer without any problems, so I am guessing the answer lies
somewhere in the codecs. Are you using Firefox as your browser and, if
so, have you got the Shockwave Flash plugin? If not, try a search for it
including linux in the search term.