Kel, I appreciate the help. I search around on Intel (followed the link from the manual) and found this:
www.intel.com/design/motherbd/linux/ It has drivers for the Lan for Redhat 8/9 and SuSE 8.1/8.2. Do you think any of these would work with Mandrake? To the other posters, the Lan is being detected, but no appropriate driver is found.