It looks like Knoppix may have assigned the same IRQ to two different items. Obviously something to do with the PCI bus. Anyway.........

Firts try booting like this:
boot:failsafe

If that doesn't work, enter your BIOS
Disable APM (advanced power management)
Disable PnP (plug & play) then try the 'failsafe' boot again.

If that doesn't work try booting with the cheat codes found here:
http://www.knoppix.net/docs/index.php/CheatCodes

If you need help with the cheat codes post back.