I compared the just repaired PSR2000 to the brand new one, and there isn't a problem. On both, the button won't respond if it is tapped too lightly. Sometimes, when I peck the button, it won't respond on both keyboards, but when the buttons are pressed they always work.

So, basically, I have had two PSR2000s with the same problem. After several months of playing, the tact switches in the Style Control section start to fail. Thank God for warranties.

I will be returning the brand new PSR2000 this week.

Beakybird