Hi Mike and others

I've just installed a new Virgin Media Super Hub via wire to my mainXP pc. I have successfully connected to the Internet on both the pc
and my Vista laptop wirelessly. However, my son's laptop is playing silly beggers. He has a Sony Vaio, OS Windows 7.
There wasn't a problem with the old modem with his computer and he has just informed that the Internet connected straight away to his old Windows XP laptop. The system on the Vaio says there is a connection to the Internet but when you try and connect there is just 'problem loading page' which normally comes up because there is no Internet connection. The icon at the bottom of pages, just has a wedge of lines. We have been all afternoon trying to sort it out but to no avail.
I'm wondering, is it Windows 7?
Any ideas what the problem would be?
Thanks very much.
Chris