It arrived today. Plugged it in and began to play - live piano - and it wavers like the mod wheel is in the up position. All sounds do the same... However it won't stop no matter where I position the mod wheel...also the pitch bend wheel has no effect on the sound of instruments.

I tried a factory reset. Can't seem to find the problem.

Any technical suggestions? Is there a setting I need to check? Or is this just one more defective S900???

Tim