Have the same problem. Only way to fix is to use a Netgear WG111v2 USB adapter.
Works beautiful now. The wifi works fine with the internal wifi card when you are on the PC side (I am using XP).
I still use the Netgear though since I always have it plug in. BTW, I have the dongle plug in to a short USB cord so your other USB port is free.


good luck!

Harley