Dave, are you using the K2500 module or the full keyboard? I have 4 k2500 keyboards here ( 3 in live situations and one in the studio, and the Piano sounds are the only thing that keeps them around, the keyboards have all had multiple keys die, the os is a PITA and it is wayyy too heavy.. but damn, the piano sound...
I am thinking seriously about selling the unit and buying a rack module of the 25 or 2600 when it comes back from the shop this time ( 3rd time in the last 2 years.)
Maybe this should go in the moan zone.....