I've been using Spotify on new computer for 1 1/2 years. Suddenly 2 wks ago when I opened Spotify, chose a playlist, hit PLAY : Instead of playing selection: Program highlighted chosen green then proceeded to highlight next song, then highlighted third song, fourth song, etc. etc. etc. all the way thru every song in list ! ! ! Same on every playlist I chose and also on any Radio Station. What's App With This Up ? ? ?