Right click on the Internet Explorer short cut on your desktop and select
properties, the window should look like this:
Then select the connections tab:
Then click on your blueyonder connection and click "Settings..."
Make sure the proxy server is set to webcache.blueyonder.co.uk port 80 then
click "Advanced..."
In the bottom box delete everything and enter *.dll
Click ok in all the windows, and that should be it sorted!
Text & Images courtesy wgsd