I can only said, (good for you Wittid)

Don't only always be positive, maby next time it's yours turn to have the problem

There are many members with broken knobs (not only Start/Stop), so there are no need to bagatalize the trouble
I'm not negative, but I have never been hard with my Keyboard and I have NEVER used it on gigs, only at my home, because I don't trust it for a stabil function

. I'm still used my good old stabil BÖHM organ (multi-keyboard on gigs
The only way to tell KORG about it are as WITTID will said "einmelden sie bitte" or something like that
I hope there will be many many more members there will repply on this theme.
Good summer to all.
Cheers
Kjeld