Wifi NIC drops, reconnects, drops...

Hi, is anyone here familiar with D-Link networking equipment?

I have a D-link DWL-G650M Wireless card trying to connect to a DI-634M router but what keeps happening is the card will keep dropping the wifi signal a second after picking it back up.

I think the following line that keeps popping up in my router's log might be related.

[INFO] Thu Mar 12 06:38:21 2009 Wireless system with MAC address _________ associated

Any help is appreciated.