Hello, I'm hoping you might be able to help me. I'm running 10.5.7 on a Dell Optiplex 755: 10.5.7 iATKOS v7 Chameleon 2 RC4 C2D 2.0GHz 4GB RAM GMA3100 (soon to be an NVidia card) Q35 Express Chipset Intel E1000 Gigabit (10BD8086 rev 2) With the original 82566mm it shows up in System Preferences, but is not working correctly. The lights on the ethernet port don't light up and it won't get a DHCP address. All the links to the original 82566 kext are dead, the only one I got is from Sept 27, 2008. I know there was a later one released on October 15, but I can't get it. With this new E1000 kext, I can't get it to show up at all. I've tried: Installing with KextHelper to S/L/E Installing to E/E and fixing permissions manually Followed this guide here: http://www.insanelymac.com/forum/index.php?showtopic=225838 First two above after having edited the Bindings to reflect current versions from kextstat Installing an older IONetworkingFamily.kext and updating the info.plist of the E1000 kext Installing a stock 10.5.8 IONetworkingFamily.kext and reinstalling E1000 . . . After the last one, IntelE1000e.kext (alone, not in tandem with 82566mm.kext) at least allowed it to detect the ethernet, but it gave me the same problem that I had with the original driver.