I am having the same problem as described above. My wireless card is listed in the info center with the same message:

Subsystem: D-Link System Inc: Unknown device 3b00.
My hardware consists of a Dell Inspiron 3800 with 512mb ram and 10GB hard drive which dual boots Windows XP on NTFS hda1, FreeDOS on hda2, which allows the use of loadlin to boot Knoppix v3.6 kernel 2.4. This is a poor mans install, but I don't see that as the problem. I do have net access through my DSL modem via 3com ethernet card.

My card is a DLink DWL-G630

I have tried running wlcardconfig with the same error message: No wireless Network card found.

There was one thread where someone with a DWL-650 apparently got their card working by upgrading to a later Knoppix version, but the individual did not share the details of their success.

Any help on these two cards on Knoppix v3.6 would be a great help to both of us. Thank you.

James