Disklavier

I've not had the sqeaky pedal problem, but maybe the latter though not 
sure if it is the same. When the piano was operating on playback, if 
it operated the soft pedal, the piano keyboard would rattle violently. 
A technician was able to make a minor tweak (tightened a bolt 
somewhere I think) and solved the problem. Was quite worrisome on a 
new MkIV but easily solved under warranty. Once again, not sure if 
this is the same problem you're experiencing.

-- Mark