Noise

I've been having a lot of trouble lately with Blogger setting the background behind some sections of text to white. Yes, I know this looks like black text on a white background, but the white is not really white, it's some kind of off-white. My computer is infected with some kind of crap that causes all kinds of annoying little problems, like I can't download anything using Firefox, and I suppose this could be another symptom of that disease. It's just so weird though. It shows up in random places for no apparent reason. I suppose it could be some weird typo that I keep making, but why has it only started up in the last couple of weeks?