I have the same problems,when i connect through popular proxy just top loads and a few mins later the whole site,
but when i changed proxy to Hersham proxy site works ok
gotta be a proxy issue
just change your proxy mate
i use firefox which i download a extension to easy change proxy through 2 clicks of your mouse
http://www.roundtwo.com/product/switchproxy
ntl proxy list here
http://www.cableforum.co.uk/forum/article.php?a=10