MS ADO2.1 error

When I try to delete an MP3 file out of an MP3 album and try to save the change I get: An error occured while attempting to use MS ADO2.1. Please make sure you have this component installed before using the database features of CDJ. I do have it installed.

Then I get: CDJ ERROR CODE=80070057 CODE MEANING=The parameter is incorrect SOURCE=(null) DESCRIPTION=(null)

Then: ERROR WRITING LIBRARY

Then I can't shut down CDJ without doing a Ctrl,Alt,Del Then when I start CDJ again I get: ERROR Track number out of range.

The way I correct it is to copy my back-up database into CDJ.

Is there some special way to remove an MP3 file from an audio file album to avoid this from happening? It seems that if you can add them we should be able to delete them too. Or do I have to delete the whole MP3 album and rebuild it? I have successfully deleted them if they were at the top (first track) of the album.