More network worries

I'm beginning to think that the MiniNote wireless card is causing the network problems. I seem to be getting a modem and/or router crash every time it is switched on - this has now happened with two, possibly three routers (I think this may have happened when I tried it at work, though everyone thought at the time that it was just a crap WiFi point).

Is this even possible? If so, what the hell do I do about it?