Hi, I have a question regarding my FWM575/37 system. When I am playing cds sometimes the remote will not work to change the songs, albums, pause or stop but when I go off cd and then go back on cd or turn the system off and turn the system back on again it will work. The buttons on the stereo will work for those actions during that time but not on the remote. Is there any reason as to why this would be happening?