Incorrect track names

I have noticed that a significant number of my track titles in Lexicon refer to incorrect music files that do not correspond to the music file. Not sure how and when this happened and cannot find any pattern except it seems to be the older tracks that I have had on my hard drive a while. (possibly ripped from CDs). Any advise on how to fix without individually checking each track.

Can you give me an example?

Track in lexicon - Title = Two Steps Behind, Artist = Def Leppard. But when i play track it is Janet Jackson- Thats the way Love Goes. I have both tracks on my hard drive with the correct file names

Maybe this helps: How do I use the track filename as my title?