This is bizarre, and it only happens on my own website. I've even stripped all of the code out of the advertisement, and I still can't hover over / click it. Here's the stripped advertisement: http://avatarthemovieforum.com/include/user/top-right-ad.php It is clickable for me in every browser except for Opera 10.XX+ (Opera 9 works). This problem can be fixed by restarting the browser, and only reoccurs after a few minutes in (even idle on the page). I don't need to click my advertisement, and I don't, I'm just concerned that if I ca't even hover over the advertisements, that other people in Opera are having the same problem. Or, is it possible that the advertisements detect my client information, and block me from clicking / hovering over my ads? What's going on? None of my code is causing the problem, because even just a blank page without CSS / HTML (besides the javascript for adsense) fails to work.