I had the same problem with the BCM4306 card.... I tried Dell, Linksys, Broardcom, and even new HP drivers and got the same error... I had to use an old hp driver to get mine to work (it even worked w/ my Linksys WPC54G card)... My suggestion try a bunch of different drivers, or do some googgling to find other successes w/ that card... and once you find a driver that work DO NOT LOSE IT... . What version of Knoppix are you using? If you’re not already using it try 4.0.2. Good Luck, keep us informed... There are surely others having the same problem.