Thanks in anticipation that someone can tell me what to do here. Although I have not used the music file system as have just made my own registrations, I thought I would investigate its possibilities. I checked my 910 and all styles are alongside their corresponding songs and all seems to work as expected. When I try to bring up any song record on my 970, except for a few,I get the message STOP STYLE FILE LOST-pages and pages the same message. The styles that are there seem to match their corresponding song, although it may be listed as the name of another song, such as eg: SONG-tonight you feel lonesome --STYLE -blue bayou. It seems that the styles from the keyboard are missing. Can I replace them?? I am helping my friend with his E453 as he is loving the Music finder and his works fine, but what can i do about mine??Hopefully- Jean.