i think that means it's not recognizing it as a wireless device. As such it might not be accessing the wireless functions.
But then again, should linux be doing that??
regardless of what your pointing device is, it's modular and what it tells the OS, has little to do with the number of rotations the ball makes, or whatever the light sensor picks up.
Sorry mate, dunno enough about wireless in that regard.
But there are a few forums on here where they are dealling with that particular card.
I guess it isn't a good sign others are also having issues. But then that could be a good sign, that you're not making a mistake