I set up a basic database saved on a network drive at work but for some reason it keeps duplicating itself when saved, does anyone know a reason it would do this please?

I thought it was to do with the compact and repair option on close but i have tried switching that off and still get the duplicates. The duplicates are never the same size as the main DB and always different sizes.

Another thought i had was that some one else maybe opened it whilst it was compacting and repairing which then stopped the duplicate being deleted

Any thoughts much appreciated.