I randomly hear sounds on my computer while I have an Internet browser open (regardless of which one). They are mostly animal sounds, such as a cat meowing or a dog barking. A few minutes ago I heard a bike bell sound. I don't know what is causing this. I tried looking in Add/Remove programs for anything I didn't recognize (everything there was familiar to me). I tried running a spyware scan with every antispyware program on my computer (all scans either came up clean or found a few tracking cookies, but nothing else; I don't think that a tracking cookie could cause this). I have Windows XP Service Pack 3 RC1 (I had this problem long before I installed said service pack from Microsoft's website) with IE7, AOL 9.1, AOL Desktop, and 384 MB of RAM.