Since I purchased my G5 1.8 GHz. single about a month ago, I always got a startup sound from the internal speaker. I have ALTEC Lansing external speakers connected, but they connect through the non-digital mini-jack port in back. I assume that is why the startup chime doesn't go through my external speakers. For the past couple of days however, I haven't been getting any startup chime through my internal speaker. I am of course wondering if my internal speaker has gone AWOL, or if there is something more serious going on. Anyone heard of this? Is it a known issue? I couldn't find anything in Apple's Knowledge Base. Cheers, Brian