Yeah please do
I've just had a good read through that thread and there are loads of solutions seemingly for your exact problem therein.
Stuff like check you're not using a proxy server in Internet Explorer (Go into TOOLS > INTERNET OPTIONS > CONNECTIONS > LAN SETTINGS > make sure there's no tick in the "Use a proxy server for your LAN..." box at the bottom and either of the automatic detection boxes at the top.
Anyway, let me know how you get on or not and I'll see what else I can rustle up
