Suddenly got this error "Internet explorer cannot open the internet site XX Operation aborted" a lot on a production site. It also happend when hitting the back button. Well, no specific error makes it hard to figure out whats the problem. Strangly, firefox didnt come up with the error. That was a first clue. After searching a lot and switching on and of different features of the site I found that it had to do with the order javascript sources where loaded. Googleing on it i found plp having trouble with innerHTML, well that wasnt the case 4 me, but moving all my javascript references to the bottom solved the problem for me. Is this caused by a recent windows update? must b i guess, didnt have these problems b4 and I can recall having a vew updates the past weeks. Error happens more on slower servers, so must have something to do not getting his resources fast enough to fill the DOM.