For some reason or other my system sounds and sounds on speakers/headphones disappears. A day or two later all sounds are back. Every time I check everything and it's OK, all the settings remain unaltered when I lose the sound and when it returns.
I haven't been able to pinpoint when sound loss starts or when it comes back. No sound this morning - shut down my computer. This evening turned on my computer and sounds are back!!
My OS is Win XP Pro SP2. Firefox Browser V.3.0.6.
Hope you can help