Power button problem on subwoofer

[CindyG]

I got my Genos with the GNS-MS01 speaker system back in April. In August, the power button on the subwoofer wouldn't stay pushed in so that the speaker would turn on. Thankfully, Yamaha replaced the subwoofer, but it's strange that it would happen so soon after I got it.

Just wondering -  Has this happened to anyone else?