Intel c2d is a processor, not a NIC. Fedora 9 is not very mature, and you shouldn't expect it to work properly. We need to know what NIC (Network Interface Card) your laptop uses. We need to know especially which chip the card uses. 'Intel 3945 BG' is the name of a chip, used by many NIC manufacturers.
Try:
linux # lspci -vvv | less
and see what it prints to the screen.
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