Chris wrote:
I have the same problem - all I could find with Ethereal was that the
problem websites somehow cause a checksum error on certain outbound TCP
packets. I am guessing that the firewall blocks these packets, leading
to a timeout.

It is indeed an interesting problem. I'm affraid I've too little
knowledge of networking protocols to figure this one out, and too little
time to gain the knowledge needed. I hope nVidia find the answer and fix
it - it'd be a shame to have to let the nVidia firewall go to waste, but
as is, it is unusable for me, and I can't recommend it to anyone.