I tried booting from the CD but I keep getting to a certain point where it says that some installation components failed to load from the CD. That happened the first time I tried the Live CD when I was still running windows on this box. Anyway, here is the exact message I get when I try to boot the system:
GDM could not write to your authorization file. This could mean that you are out of disk space or that your home directory could not be opened for writing. In any case, it is not possible to log in. Please contact your system administrator.
So it's stuck on stupid for the moment. What should I try next?