Canon VIXIA HF10 HDV Camcorder "phone turned back without paying" Questions

...turned the "Instant AF" to "Normal AF". After that, the autozoom seemed to have stopped. I set it back to "Instant AF" and it did not autozoom again. I wouldn't know how to turn the autozoom back on ...

phone with JVC I was told it was a "failure of the pulse generator" (?) and told my only option was to go to a service center for warranty work. I called the nearest service center but decided I would