Internet Access Issue

I have a strange internet access issue. Frequently I get a "page not found" error when launching IE (I'm running XP pro SP2, but the error happened with SP1 too). Strangely enough I can usually use Outlook to connect to my pop3 email account. I'm using a desktop PC connected to a motorola cable modem directly (via LAN card not USB) on the Comcast network.
Usually after launching IE 10+ times it will finally connect.

Any ideas on what to check? I've used Pest Patrol to check for adware, but none was found.
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when this happens, can you ping the sites?
ping your dns server? tracert to the sites?
Hothead38Author Commented:
pings are successful too.
Hothead38Author Commented:
thanx. but i get a page not found error with the link you gave above.
Ugg, I hate when they do that
see here

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