|Linda, I loved you in the Exorcist.|
You need to explain your setup better - assuming that you have a DSL connection with AT&T Yahoo, and a DSL modem with a router connected to the modem. Then the router shares out the DSL Internet connection?
How is PC1 connected, to the router, or directly to the modem?
If you did a RECOVERY on PC2, did you install the Ethernet Drivers?
Just another stupid saying...