I believe you need Kubuntu Fiesty..
Part of Feisty is an update to X11...
Looks like the disks may contain a livecd version of it... I'm still downloading the torrent...
I downloaded the Kubuntu Feisty DVD a couple of days ago when I first noticed the wiki..
I've installed kubuntu and running it now... all setup ready for 1.1.
Having already installed Ubuntu Feisty on a machine ready to try v1.1, is there a simple procedure to convert this to Kubuntu? or do I need to D/L another installer to start again?
Also, I don't know the first thing about Torrents, will the 1.1 beta be available to download from any mirrrors?