You also have to turn off the speaker distance/level/size etc. after you changed those variables, the icon will dissappear.
You could reset it by using a null-modem cable and a program (
www.omei.de for a non-official version, google: "yamaha receivereditor" for a official yamaha program, there's also a schedule of the rs232 configuration, if you want to make a null-modem cable)