I am having connection problems with 2 sites. Yahoo mail and facebook.
With yahoo mail I can connect to the site and do 1 or 2 operations (like open or delete an item), after this the site either stops responding or the page just goes white. I have deleted all catch and tem files without reward.
Facebook allows me to see the sign in page but once I have completed my details and entered I get a white screen. It will eventually connect but it can take up to an hour.
The yahoo problem has been going for about 6 weeks the facebook one only a few days.
I do not have these problems at home on the desk top... only when using my 3 mobile with my laptop.
Try comparing the settings in Internet Explorer between your desktop and laptop, you'll find them in the Tools/Internet Options menu. In particular check settings under the Security and Advanced tabs of the window that comes up.