I use UTF8, I change to automatic selection but got the same problem.
I have this problem on my two PC: HOME, with Windows 7 using IE9 and Chrome; and WORK, with Windows XP SP3 with IE8 and Chrome.
Both PC have the same ISP (Telecom Italia Alice), 2 different connection, not the same DSL.
Could be a wrong black listed IP added by this ISP, on their DNS?
This problem continues even if I use Open DNS.
If I open a page or post (not the home page) of BE site, from Google search for example, I have no problem.