I know some people have run into trouble with this, so before I go shopping for a new wireless card I'd like to take a survey of what does work. Please include: the name of your card relevant upgrades to your machine, especially Cardbus your OS which driver, Airport or 3rd party any tricks needed to make it work Here's my story in case anyone can offer assistance or general commiseration: I have a WaveLAN Silver out of an old Airport, whose functionality I haven't yet been able to verify on another machine. My 2400c is not Cardbus enabled as far as I know. I'm running OS 9.1. The card worked beautifully for a couple of days with the Orinoco drivers that happened to be left on the hard drive by the previous owner, then its data transmission seemed to grind to a halt, but the signal strength showed up fine. I then performed a clean install of 9.1, and used Tomeviewer to extract the Airport files according to the instructions at http://www.wwc.edu/~frohro/Airport/Airport12OS86.html It worked very briefly, and then not at all. One light would go on when I inserted the card, but then when I turned it on via the control strip, both lights would blink a couple times and then go out. Finally I installed the latest Orinoco drivers from ftp.orinocowireless.com which picked up a signal only once and now not at all. So I'm starting to suspect the card itself. Thanks, Ed