I recently got a wireless internet card, a D-Link DWL-G650 Wireless Cardbus Card 802.11G 108Mbps

type dealio...

It seemed to be working fine upon first installation (automatically detecting and connecting well) but after about a week, I began to have problems. Whenever I try to connect at university, either it says there's and IP address conflict (possibly unrelated) or suddenly the card cuts out, and my system cant detect it at all, even with the add hardware tool. THEN, when I try to disconnect/connect again, my computer freezes untill I take out the card.

Its pretty annoying, and I would appreciate any help I can get. Thx