I agree that Chony might have to manage expectations. Nevertheless, the types of problems he is having are for pretty basic types of functions:

1. Saving a user style and having the levels jump around.
2. Saving a user style and having the file directory disappear.
3. Using a sampled voice and having the volume fluctuate.

I would be pissed off if my keyboard were doing this. Hopefully, Chony can find a workaround while he waits, but I wouldn't characterize these problems as minor.

Don't worry, Yamaha will come through, but it might take a couple of months.

Beakybird