Apple 10/100 Fast Ethernet PCI card not initializing

The Apple 10/100 Fast Ethernet PCI card came in today for my Rev. A Beige G3, but for some reason it doesn't seem to be providing any kind of network connectivity, using the same TCP/IP settings I had previously used for the 10mbit built-in Ethernet. I've tried swapping PCI slots, but this hasn't made any noticeable difference. The card appears to be functioning, though, as it reports its existence to the Apple System Profiler. The lights integrated on the card, however, show no signs of life, and attempting to set the time over the network fails. IIRC, I had similar problems trying to set up a 10/100 Realtek card with this machine in the past. Constructive suggestions would be appreciated.

Thanks,

--James Chapel (Dragnerok X)