Hi, I have just upgraded from Office Professional 2000 to Office Professional 2007, and in the conversion process all the numbers in my number field have changed, this field has the primary key assigned to it as the whole idea is to keep the numbers unique to each record, my problem now is that a search on a number in my database in Access 2000 no longer relates to the number in Access 2007. The Access 2000 database gives numbers beginning with 1 and ending in 13,678, but the Access 2007 database gives numbers beginning with 26,127 and ending in 39,805, so still the same 13,678 records but numbered in a somewhat bizarre fashion. Any suggestions on how I can return the numbers back to 1 to 13,678 in Access 2007 would be gratefully received, regards Mike