Hi
I have a Komplete A49 keyboard and recently it's started behaving very oddly. Sometimes it works fine, at other times touching certain keys results in a loud 'crash' as if multiple keys are being hit very hard all at the same time.
There doesn't appear to be any damage to it.
I bought it some time last year - can't remember exactly when but it's almost certainly still within warranty. Unfortunately I bought it from the GAK shop in Brighton which has recently gone into administration :-(