Hi everyone, This is the AppleIntel8255x.kext this kext also works for the 82557 chipset of the Intel Pro/100 VE Ethernet Card, all you need to do is drag the AppleIntel8255x.kext to the following folder: /System/Library/Extensions/ Once you have dragged the filed into /System/Library/Extensions/ you will need to Authenticate with your administrative password. Once you have authenticated you will need to open a terminal window & paste the following commands into the terminal: sudo chmod -R 755 /System/Library/Extensions/AppleIntel8255x.kext [authenticated again] sudo chown -R root:wheel /System/Library/Extensions/AppleIntel8255x.kext sudo kextload -v /System/Library/Extensions/AppleIntel8255x.kext [manually load kext] When you have manualy loaded the kext Successfully you should get the following text or something similar. Once the kext is successfully loaded clear the kext cache to do this copy and paste the following into a Terminal: sudo rm /System/Library/Extensions.mkext [This forces the system to re-examine all of the drivers and rematch during the next boot cycle.] Now Reboot. Once you have rebooted go to System Preferences => Network => Built-In Ethernet [This may differ] => Configure Now Configure the Built-In Ethernet and you are now Fully Networked! Enjoy Your "Intel Pro/100 VE Ethernet Card"