I've recently installed Ubuntu 12.10 as a dual boot with Windows 7 but I've found my that neither operating systems can detect any of my ethernet cables. Wireless internet does work on both though. My LAN driver is Realtek PCIe GBE Family Controller. Since I'm new to Ubuntu I haven't tried much to fix it on Ubuntu, but I've tried a variety of things on windows like re installing the driver.
Any advice will be appreciated.