Tried a few things suggested by the links in evazion's post. Didn't work. I'm using IE8, but everyone's going to have different preferences for browsers because of how they perceive their own level of knowledge when it comes to computer operation. Which one is better or not doesn't really address the issue at hand. The fact is this problem only occurs on Danbooru (for me at least), and only within the last couple days. It seems more likely that something has changed server side than everyone using IE, or other browsers that have the same problem, spontaneously encountering the same glitch or damaged cache file or whatever at the same time. I guess this is just a grump post though since I can't offer any solutions.