Playlist Isn't Random Enough

[AmbientInsider]

As an on again/off again user of spotify, I've found that my flash drive music player, play my tracks more randomly that spotify. So much so that the last time I was here, the spotify playing system played and repeated several tracks over and over. I've sent the music to shuffle yet it kept playing a couple of tracks over and over. Not sure the reasoning and how is it that my flash drive (which used windows media) plays more random that spotify. This isn't a big deal, but could be the reason I left in the first place. I need more spontaneity when it comes to playing those tracks I've created a play list as well as tracks acquired from several of the artist here on spotify.