Wanted to comment on the thread "Post Reply" thread button but couldn't, I guess this forum cannot receive replies from general members, just new topics? Anyways, this was just happening to me as well. I loaded the URL ( http://cdn.tfw2005.com/boards/images/2011/buttons/reply.gif ) for the image in a separate browser tab, hit CTRL + SHIFT + R (on Google Chrome) and it reset. I then went back to the thread I had it in and refreshed and it was cleared. It looks like (just based on the URL) that you are edge caching the graphics. Is that accurate? If so, whatever service you're using for the cache looks like it is corrupting the image every now and then.