Archive of the former Yahoo!Groups mailing list: Discussion about the Korg PolySix synthesizer

The programmer on my Polysix sometimes "drops" the current program and switches to a completely different sound while I'm playing it. The new sound sometimes sounds like all the knobs were twisted to dramatically different positions. More frequently, the sound just disappears, as if someone turned the synth off. I can return to the original sound by hitting the number button again, but within a few seconds the program switches as described above. When this starts happening the synth becomes pretty much unusable.

I haven't noticed this happening due to anything specific. Sometimes it takes 2 hours of playing for this to occur, other times it starts doing it within minutes or even immediately.

The synth was recently refurbished by Tone Tweakers, which included a battery replacement. Does anyone know what's going on here, and how fix it?