[Mooncat]

Ok I might have tracked down the problem, though it seems a bit odd...

My router is an old PC with linux and some router software.
The NIC's are pretty old and only 10mbit, and this appears to be the problem.
Even though I'm only on the 2MB service, it seems certain sites such as the one I mentioned previously overload the NIC's.
I don't know if its connected to the recent upgrades on the NTL network because the system had been working perfectly until this month.

To back this theory up I connected the modem direct to my main PC and forced the NIC ( this time an onboard 10/100 ) to be a 10mbit.
When I try to access gfxartist.com the modem reboots as before.
Change back to 100, and it all works perfectly again.

So it seems to be related to the NIC speed.
I wonder why this would affect me on 2mb though ?

Thanks.
Dan