Bruno,
Thanks for asking and taking this Bug seriously.
Here's the story on my G3 PowerBook (Pismo)
ATY,RageM3:
Chipset Model: ATY,RageM3
Type: Display
Bus: AGP
Slot: ATI
VRAM (Total): 8 MB
Vendor: ATI (0x1002)
Device ID: 0x4c46
Revision ID: 0x0002
ROM Revision: 113-XXXXX-119
It is not handling the labels at all well.
They are scrunched up and essentially unreadable.
But otherwise, GoogleEarth looks like it will be a lot of fun and have a lot of practical applications as well

---alan