[Crannogman]

Have you tried getting a different snack, such as yogurt or a fritata? Perhaps an artisinal whisky? Have you attempted to replicate this with other programs?

My case has a somewhat weak headphone jack, and it's not overly hard to bump them loose. Combine this with a motherboard that just has to know what's plugged in, and it can get confused. Perhaps this would form an alternative theory.