Thanks, but I've still got the same error. I ran Wireshark and am seeing 'roughly' the same stuff being sent. Specifically, the cookies are sent which is curious. However, there's one that looks different:

When I load the page in Firefox or Chrome, It shows I'm sending 'Connection: keep-alive'. In my script, I'm sending 'TE: deflate,gzip;q=0.3' which I'm not sending at all in a browser, along with 'Connection: keep-alive, TE, close'. That is the only difference I can find now. :(