In message <[EMAIL PROTECTED]> on Sat, May 21, 2005 at 12:41:35PM +0800, Christian Kotz wrote: > It indicates the results of the Mac's Power On Self Test, the bong > means she's all good. Probably Tiger's done something to your BIOS/ROM > as that chime is an instruction in the ROM. It's a bit of a concern, > what else has it altered?
The chime can be silenced by muting your audio volume (or, at least, it could in the past --- although I've somehow developed the impression this is not effective with Panther and newer Macs). Perhaps Tiger always mutes the audio volume on shutdown for some reason?

