Can't install software in Xubuntu Gutsy Gibbon beta LiveCD
On the LiveCD of Xubuntu Gutsy Gibbon beta, I am unable to install any software. When I try to add an application using Add/Remove... it hangs. Then I killed it with Ctrl+Alt+Esc, and killed Python using System Monitor. However, when I start a new instance of Add/Remove... afterwards, it says "Another instance of Synaptic is running in non-interactive mode".
On a fresh boot of the LiveCD (so not in the same session) when I tried to install Flash from withing Firefox I was told the installation of Flash had failed and I was presented with a button that said "Manual Install". Declining that, I tried to install Flash using Add/Remove... I had the same problem as described above.
At yet another fresh boot on a *different* computer, I first tried to open a terminal and type "sudo apt-get install recordmydesktop" so that I would be able to record what went wrong. However, this, too, hung at:
ubuntu@ubuntu:~$ sudo apt-get install recordmydesktop
Reading package lists... 0%