clusterKnoppix Live Cd boot failure

I'm trying to run clusterKnoppix live cd from a couple machines but it only works from one computer. The other three, my toshiba laptop, emachine, and hp machine can't find the filesystem.. the live cd stops booting and gives me a error saying it couldn't find knoppix filesystem and then gives me a couple commands to work with.. mount, umount.. and a couple more.

I noticed that the machine that worked, my gateway, looked in /dev/scd1 or 0 don't remember.. the other machines don't even look in this file.

How can i fix this?

Thanks!