I upgraded the home LAN. My wife was having problems maintaining her wireless connection, so I thought I'd be cool and bring the router up, from under the basement stairs, and put it atop the entertainment center (putting a new switch in it's place, at the nexus of the home wiring). Turned out it wasn't so cool, and she had the same problems. Every four minutes or so it would lose its connection, and she would have to right-click and 'repair' to get back on.
So, I downloaded the latest flash firmware for the router. I downloaded the latest driver for the wireless NIC. I downloaded the updated encryption protocol for the NIC. I installed it all.
Oddly enough, it all works. Super G, blah blah blah. I'm out of the dog house.