i installed version 6.25 that shipped with new mixer and now all of a sudden i have doubles of a lot of my mp3s???? im confused .. what can i do about this other than going thru 15,000 tracks originally now maybe 30,000 to get rid of double mp3s showing up in collection. (when i say in collection i mean the program not doubles in my windows folder)

Try the latest public beta, that should fix the problem. If not, let us know.