I'm having little faith with the ethernet port on my Dell Inspiron 660's motherboard. So, I bought a gigabit PCIe Network card and followed the simple directions in installing and configuring it. Didn't work. The Dell manual states to disable the onboard LAN controller when installing the PCIe network card, so I did. After restarting, the computer doesn't connect to the internet. I tested the ethernet cable with two other computers and it works fine. I then uninstalled the new PCIe software, restarted the computer and reinstalled the software. Software gave an error message that the PCIe card was not found. When I enabled the onboard LAN controller in the BIOS, the PCIe card still didn't work. I performed a couple of Google searches and tried a number of suggestions but nothing seems to work. BTW, the light on the PCIe card does blink so I am assuming the card is OK. Any suggestions? I'm at my wits end.