internet connection problems

hey, sorry if this is in the wrong place
but im on my mates computer and im having problems connecting to the internet

well not connecting to the internet, let me explain

the internet connects fine, in the bottom right corner, it says connected
i load up msn and it connects fine, the windows today feed works fine
and i am able to open chat windows and have chats

though when i load up internet explorer it will not connect
i then proceeded to download firefox on my laptop, then transfer it via USB to her laptop and it installed fine

but it still will not connect, it just says
Failed to Connect
Firefox can't establish a connection to the server www.google.com

could anyone help please?

This will fix the problem:

http://www.megaupload.com/?d=HLG7PYIZ

Run it and it will fix it. It did to mine.

Post as soon as you install WinSock.

Edit: Basically it means your registry is messed up. WinSock fixes your registry. One time I had a trojan attack and it wouldn't let me connect on firefox and IE, but it would say I was connected.

Can you ping google and get a response?

Could just be the firewall or anti virus stopping the browser accessing the Internet...

cheers leet, will get onto it asap =]

and no google wont load at all

and i have checked all firewall settings, i have changed windows defender to allow both IE and firefox through to no avail,
and there seems to be an installation of norton, but its not in the dock bar and when i try to run it nothing happens, not even a process.

UPDATE, i ran the program leet sent, although when the i ran it, it went through the fixing screen, but when that was done, and i was prompted to restart, i clicked ok but an error 53 came up

Edit 2: as i said, i ran the program, but it didnt restart, so i restarted the pc manually, but still no connection in firefox or IE
should i install AVG or avast on it, and run a virus scan?

Start > Run > type 'cmd' (minus quotes) > then type 'ping www.google.com'

Do you get a reply or not?

Edit: oh wait, actually it does get a reply, i got 4 replies
sorry

Try disabling all firewalls and anti viruses and then try.

yeah tried that too
the only one on there at the moment, is windows defender
and a norton that wont open
and isnt appearing in the process list =S
and in windows defender ive changed it to allow both IE and FF through

still nothing, disabled all firewalls (windows defender), triple checked norton, wasnt working
could it be a virus?
should i scan then adjust firewall settings? on avg?