I put Windows 7 (build 7000) onto a plain-vanilla Dell Dimension 4600. It seems to have found the NIC (evidently an Intel Pro/100 VE) just fine: http://pixelcity.com/7/0-device-mgr.png ... but I'm not picking up an address from my equally-vanilla Linksys router. With the cable unplugged the network window looks like this: http://pixelcity.com/7/1-unplugged.png ... and as soon as I plug in a cable it starts doing stuff: http://pixelcity.com/7/2-plugged-in.png ... further confirming my belief that the NIC is working and Windows 7 can see it just fine. But then it doesn't pick up an address. http://pixelcity.com/7/3-final.png 'ipconfig' in a CMD window confirms that it's using a self-assigned (169.x.y.z) address. This machine was online 2 hours ago with XP, so the NIC, cable, and router are all fine. Any ideas?