Well, sorry... I had not kept up with the issue for a while. It seems that Korg are bending over backwards to replace for free any problems with the LED's, and it still seems like it is a very small number (if the forum is flooded with reports, that's when I would worry )..

And well spotted, Tony. I am a SOCIAL capitalist! It's too much typing to be one of the bold the few, the proud!
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An arranger is just a tool. What matters is what you build with it..!