I've got an older HP Slimline 3020n that I was having problems with due to a virus. I restored it to the factory condition using system restore. Now, the wireless card works but the ethernet connection isn't working. I did some searching online and there is a known issue with this happening and it said to update windows, so I installed all 55 updates and 1 of them was for my networking card. Now, when I plug the ethernet cable into the back it doesn't blink like it does on my other desk top. I don't think it's recognizing the card. I called HP but they want 50 dollars to walk me through the troubleshooting. This is my mom's computer and she doesn't have wirless at her place so I'd really like to get this figured out so she doesn't come over to use the interet every day. I went to Network and Internet Connections and checked the network connections. On my local area connection it says network cable unplugged, but the cable is plugged in. I kep getting "Plug a cable into the network adapter local area connection". It's at the computer side. I unplugged the cable and tried it in another computer and it lights up and works fine. But when I plug it in to the broken computer it doesn't light up. I was reading some posts on the net about it and it sounds like the networking card isn't recognized. I am running Windows Vista if that makes a difference. I checked the drivers on the card and the computer says it is the most recent driver. Any tips on how to troubleshoot this problem?