I have 2 open PCI card slots on my Power Macintosh G3. Since my ethernet port is only 10 base I want to ad one of my extra 10/100 base ethernet cards. Now intsalling it is easy. But how can I use it? Is there software I need to download? How would I tell the Mac (in OS 9 and OS X) to look for the internet from the PCI card and not the built-in port. Any help?