I'm having difficulty booting the CD on a mark2 Powerbook - 667MHz, 512MB RAM, Radeon video, DVDROM drive, gigabit ethernet.
The boot hangs within a split second of it printing the text "Booting Mandrake Linux PPC" (I might have the text wrong, I only see a quick flash of it). Then the screen is filled with vertical lines and there's no more out of it. I had exactly the same problem with beta2. I have previously installed SuSE 7.3 and Yellowdog 2.1 from CD on this machine. Paul.