I have tried several times to use Knoppix (version 3.3 on a bootable CD), but my network card (3Com 3C940 Gigabit) is not detected by this operating system. Unfortunately, I am therefore not able to use Knoppix for the most important application I had in mind (recovery and transfer of data to another PC in case of emergencies). This network card came on board on my Asus P4C800 deluxe motherboard.

Help would be appreciated.

PS: I am an absolute beginner with Linux.