Anonymous4 years ago000Hello all Does anyone know the problem with the rotary wheel when it comes out of standby that it makes such a scratching noise? Is there any way to get a grip on it? Greetings Show in original language (German)stephan124 years ago000in my opinion, this is the switching mechanism that switches the rotary wheel between detenting and non-detenting (=sliding).Show in original language (German)Comment3 comments