Multiple NICs on ubuntu 8.10

Hi all,

I just installed Ubuntu 8.10 on a PC having 4 NICs. The integrated one is working OK but when I connect the UTP to the rest (which are all PCI) there is no activity as if they were disabled or not working. I confirmed that they all work as before it had XP installed and I could work with all.

How can I get the rest of the NICs to work? is there a way how I can enable them?