techie probs.

I just installed a new motherboard in my machine, and it works!
Go me!
It's a super sweet one that Brad recommended to me.
But...
I can't get it to connect to my network - either by wireless card (802.11b) or ethernet cable.
I've reinstalled the wireless drivers and have rebooted everything multiple times, etc.
Tim's been helping some, but he's the one who got me to this point, and I feel oddly dumb, since I could do something
relatively complicated - the motherboard - but not fix my network, which I remember involved simply plugging in cables and
cards any other times I've done it.
Any ideas?

(no subject)

I've a bad habit of doing this.