Hi all, I've just don't the family pack upgrade to Tiger at our house, and when I finally got around to rebooting my GFs iMac G5 I noticed a weird high pitched chirping sound, it's only quick and seems to be completely random. Has anyone else noticed this with the Tiger update? It's loud enough that I don't think it was something happening before Tiger. Anyone got any idea what it is, or could it be as simple as just waiting for 10.4.1 to fix any hardware bugs? Or is it something serious I should be worrying about? A quick search on google provided me with no information, so thanks in advance to anyone who has 1/2 a clue about this. Cheers all!