Are you getting a 404 error on the Google homepage link? The link in question is:
Apparently it is an issue which is only affecting countries outside the US. To take a look at what should be there visit this proxy or any proxy based in the US:
Choose the “United States”, enter the URL, “www.google.com” and click on the link on the Google Homepage.
I’ll see if I can find out more about why this is happening or whether Google are purposefully restricting people outside the US.