ok then, this should make it a bit more interesting ...
the nthellworld proxy checker says I am on belf-cache-5.server.ntli.net at the minute so I set that as my proxy manually, and I can see the site as it should be without any problems (same when i manually set the proxy to any other belfast proxy) but when I go back to using the automatic settings it reverts back to the 123-reg page
. so the proxies have obviously got the right dns settings somewhere.