DNS errors windows 98se

Hello,
I am having a problem connecting to the internet at home with a Compaq Presario 7360, K63 500mhz, 96MB ram, motorola cable modem and win98 se. I have already contacted my service provider and the modem is not the problem as we were able to ping a certain number with no trouble. When I try to get any web page, I get a DNS/Unable to connect to page error. If this is a TCP/IP problem or any other Windows problem please send a solution ASAP.

Thank you,
Chris Paulic (paulsack3@iwon.com)