For advice specific to problems with secure sites, have a look at the first
link - for general advice, have a look at the second:
http://inetexplorer.mvps.org/answers2.htm#secure_sites
http://inetexplorer.mvps.org/answers.htm#dns
I specifically draw your attention to adjusting this setting:
Tools, internet options, advanced, browsing, HTTP 1.1 settings. Turn off
"Use HTTP 1.1", turn on Use HTTP 1.1 through proxy connections.

Signature
Hyperlinks are used to ensure advice remains current
Visit the Internet Explorer Online Community:
http://www.microsoft.com/windows/ie/community/default.mspx
_______________________________________
Sandi - Microsoft MVP since 1999 (IE/OE)
http://inetexplorer.mvps.org/
> Hi,
>
[quoted text clipped - 9 lines]
> any reason ?
> TQ