Can't access the internet

Bob,
Thanks for the quick reply.
1) I get to the internet via a cable connection
2) My address is shared via a linksys cable/dsl router using nat.
3) I can ping all internal address and even open up shared folders on other computers.
4) I can't ping any external ip's
5) I can't ping any external names

n2gun,
Thanks for the reply, but I can't attempt your fix because I can't get to the internet.

Bob ,
Everything was set up properly, thanks for the info though. I discovered an additional problem with this computer, somehow there was a profile listed under documents & setting; which contained chinese writting. I was unable to to delete this profile and recieved the following message: "this file contains the master boot record".

I decided to do a win2k repair install, after which I was able to delete the profile. I then repatched the machine. Everything is no back to normal.

Thanks for your help

dcredell