Well, keep in mind folks that the latest OS may not be the most stable OS. Just like OS's on the PC. Seems they started producing the keyboard before the OS completed beta testing for bugs and have updated it as its been going out the door. They should release the latest OS to the dealers for distribution but could be that 1.20 isn't the final release.?

-Linda

-Linda
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Linda F
Casio Privia PX-560 - Korg Micro Arranger - Casio MZ X500