Well if you have one of the betas that might be an issue. The betas tend not to have all the stuff of an official release. I definately would DL the 4th CD if you can get it. Ok failing all that head on over to prism54.org - the installation of the driver is pretty easy and they have the firmware you need there as well. One last thing you might try is running mcc (under X if you can) click on networks and then manage connections - see if you can see the wireless card there.