Every time I load a page here I'm getting the pop-up (IE has modified the page to prevent cross-site scripting), which I haven't seen previously. there's been no change in my system, so is this just due to the type of ads being run on the page?
I also use IE and I get that same message. The browser will also crash occassionally depending, I assume, on which ad loads.
Post the link of the ad you happen to be on when the popup appears. Right click, copy shortcut, then paste. Or you can capture a screenshot of the desktop (print screen, then open up paint and paste), then upload to a free image site like imgur. Copy link and then paste on here. Extra cool points if you reduce the size of pic so it fits the margins of the forum.