Nokia :: N97 Music Player Continuously Searching For Songs

I have a N97 running firmware v.21.0.045 and about a week or so ago I was forced to do the hard reset because the phone became so unstable. I left my E: drive (the mass storage) intact including all of my songs, videos and pictures I had stored.Everything seems to be okay apart from the Music Player which everytime I use it it starts to search for songs and podcasts continuously. I can stop that and it lists all of my music and can play them but the volume control does not work, either from the telephone or the earpiece supplied.I have tried leaving it searching for hours but nothing changes - it just keeps on searching. Any suggestions as to how I can fix this please or does it mean I have to do another reset of the telephone? It all worked before.