That were was nothing wrong with the other PC, it was my PC... instead of just turning off all sharing, and disabling everything I have shared, I turned and disabled all sharing, restarted (most important part I guess) and logged back on, everything like MSN, Groove, and Windows Live Mail, all the passwords were reset and I had to type all the information again... strage as it sounds, I re-enabled all the sharing and it worked just fine...
So I suppose it's all good...
I'm just glad the Ethernet card I was using wasn't the one on the main board, it was that I had switched out to see if it was something wrong with the onboard ethernet controller...
Although it was a very good card it was a little out-dated.