I was about to post those ipconfig results the other day when it finally hit me... open up the Control Panel and check the Device Manager. (Should've done that before I posted here... oops.) Sure enough, there were about four items on the list that hadn't installed properly when I ran the Windows XP installation disc. A couple of those items were related to the network, and now that I've used my Resource CD to install those drivers, the modem works perfectly. So, thanks anyway!