i had a serial Orbit on my G3 and bought a USB Orbit when i got my G4 in 2000.
well after years of scraping grunge off the rollers, they finally wore out. they don't stay in contact with the roller and the pointer skips around.
i mailed their tech support to see if there were replacement rollers available, but they're not.
Kensington is going to replace ( for free ) the entire 5 year old trackball! now that's customer service.
old Orbit:
new Orbit:
i like the old look better, but free is free...
so Kensington -
