There may be a hardware incompatibility.

See the cheat codes: http://download.linuxtag.org/knoppix...cheatcodes.txt

From the bottom of the page linked above; "In case of a failing hardware autodetection, try booting with any of
the "no-" options as shown in the table above, like in
knoppix noagp noaudio noapm noapic acpi=off nodma nopcmcia noscsi nousb
to skip some critical parts of the autodetection system."

Good luck.