Hi, It seems I have a problem with lag that affect the <marquee> code in HTML and the transition in css3. Instead of getting a slow flow of text, it's jumping every seconds. There's no style in this. I tought I was doing some wrong programming but after some tests, I found out that all marquees are affected, not just the ones I made. Firefox is the only browser with the problem along explorer (well, can't ask iEx much). I have lag with my marquees and transitions. the width property seems affected as well as the letter-spacing. I'm not surprised about explorer, but I didn't expect firefox not to be able to translate properly my encoding. It works perfectly fine on chrome, safari and opera. I always try to adapt my code for it to work on firefox and chrome. It worked fine before the update something like two month ago, after that, I got some bad css deforming. I cleaned my cache without results, removed firefox, cleaned up in programs files, restarted my computer, reinstalled it. Nothing changed. Can you please help me? It could be my computer.