Problem accessing pages

I am getting connection errors once in a while when I try to view threads or even enter the site. This is the error I get:
The connection was reset
Anyone have any suggestions?

BTW, I am running a Vista laptop with perfect connection to my home wireless server with Firefox as a browser (though I have received the same error on IE7.

I have seen this on other sites too. It seems to be a windows IE thing, as if the page has expired. I’m still trying to deduce what causes that.