Belkin Wireless G Router Asking For Pin Instead Of Password

I have had this same problem. When I clicked to connect on the wireless router with a new computer, instead of asking for the password (as most routers would) it asks for the PIN. The it takes me through to a strange page where it asks me to enter the name of the network and suggests the name of my computer as the name of the network. Once I chose a name it then connected locally buy not to the Internet and then disconnected my other computer from the Internet too. I tried thecomputerguy's suggestion but when I click on Wi-Fi Protected Set Up" it asks me for a password before I can access custom settings. It then won't accept the router password i had originally created, the pin or any of the other codes on the bottom of the router.It was weird-almost as if entering the router pin from my new computer overwrite the previous settings. The router has an installation cd which I didn't use when trying to connect the new computer-not sure if this has caused the problem?