Does anyone know what this is. While trying to bring up the finder computer view (Apple (key) + Shift + C), I accidentally pressed (Apple(key) + Option + C) and heard an annoying door bell like ring come from my G4's Speakers. This almost sounds like an old macs death chime..... Power Mac G4 (AGP) 500MHZ Mac os 10.3.2 Dan Brieck Jr.