Since you posted on a forum called "Forum feedback" it was a reasonable assumption you meant the forum home page (forums.cnet.com).
Do you mean the backward and forward button in the gray bar below (currently) Life Improvement, Headphones for your commute? The ones that have class="carouselNext" and "carouselPrev" if you look at them in the webdeveloper screen (F12) of Internet Explorer?
As far as I can see (but that's a very partial view, because I didn't write that page) it call some Javascript that changes the picture. It works with me, so it's not an issue of the site. So, if it doesn't work with you, it's an issue with you. Could be your browser or a setting or add-on in your browser, something in your account, some feature of your security software. Very difficult to find out.
Things that might help to find it:
- try it with another browser (Firefox and Chrome)
- try it in another (new) Windows account
- try it in Safe Mode
- try it with your security software disabled
- try System Restore back to a few days ago
But none of these is guaranteed to help.
Kees