>I _should_ be able to export from PM5 via unix mailboxes back to PM4 >but I seem to be all tied up in knots here. How do I tell which version >my database is? Why are some databases database.old? Where did it all >go wrong? ;)
no no no - once you have upgraded you can not go back. you basically never can expect an older application to be able to read a file from a newer application because the newer application is newer because things have changed! the database.old is the copy of your version4 db before CONVERTING to version5. ---marlyse

