If you've been getting the "IE cannot open the page. Operation aborted" message while trying to read blogs and some websites then the problem is the sitemeter code.
This is why my blog, among others, has been unaccessible today. Grrr. Once the problem is known it's not hard to fix - just login, go to dashboard and remove the sitemeter code. (I saved mine in a text file in case I want to put it back on later.