Got this working on Snow Leopard, with comboupdate 10.6.7, running a Dell Latitude e5400. My DEV_ID is DEV_1680 under Windows (since my NIC is a BCM5761E). I just changed 1693 to 1680 rebooted, and it worked. Flawless. Two problems I have though, I can't seem to find that startup script in the archive?!? Second is, can't seem to find thoose lines using the HexEditor, to change my MAC Address.. annoying.. besides that, the NIC is working I guess.. but I can't test it.. lol Take a look at, http://www.broadcom.com/support/ethernet_n...mine_driver.php Scroll down a bit, and you'll se the DEV_ID's.