Since yesterday, while using both Firefox and Opera, I get strange noises on certain websites. Either a bee buzzing sound or some other sound. It's not coming from ads or banners. It's been on the various gun sites I frequent. Whenever I have 2 or 3 browser windows open and I open 1 more, I get these sounds. I don't understand it. I know some spyware installs itself on certain webpages. Anyone heard of anything like this?