Unable to a access the internet.

Hello Friends,

I read some forum messages here, but i could not get the answer for my LAPTOP problem.
I bought the laptop in China and asked them to install English OS. They did it but i am not able to access the internet. Its my badluck.

When i see the lan settings, it says it is connected.
I have tried the all of the following:
- firewall on/off
- obtain IP automatically and also setup some IP
- Tried in Mozilla and IE6.0

All cases it can connect to the internet. And in CMD prompt, i could ping all web sites.
IP address is fine and all the display of "ipconfig/all" is perfect.

But when i open the page on IE or Mozilla, it cannot display the page. It takes long time to open the page and finally it fails.

When i hit ENTER, it said "website found, waiting for reply", but it cannot download.

Please help me to find the problem, i am almost thinking that my money spent on the laptop is gone in vain.

PLSSSSSS, i am very eager to see your reply.