right-click to add playlist to show does not work

Hi,

i installed airtime 1.8, added music, created playlist and a show, but now I cannot add the playlist to the show as the right-click does not work. I tried with Opera, Chrome and Firefox on Ubuntu 10.10. Same distro running server side.

Just noticed I have the same problem on the demo site, so I guess the problem is on the client side.

What am I missing or are those browser/OS combinations not supported?