>I use a variable called autoincrement. When it equals true, I do this code in the add button
>
>if autoincrement = .T.
> select (tablename)
> private oldord
> M.OLDORD = ORDER()
> set order to &indexname desc
> go top
> store &fieldname to m.oldnum
> m.newnum = m.oldnum + 1
> SET ORDER TO &OLDORD
>endif
>
> APPEND BLANK
>
>
>if autoincrement = .T.
>* insert form.fieldname.value = m.newnum and set
>* form.fieldname.readonly = .T.
>
> &formfield = m.newnum
> &formfield2 = .T.
>endif
>
>the formfield is a hidden textbox on my form, that dipslays the new number and its control source is assignment.assignid which is the index in the table.
>
>The problem is when I click add on both machines the assignid = 14
>
>Thanks,
>Tyler

This strategy is wrought with problems in a multiuser scenario (as you have found). Look at the database in the TasTrade sample that ships with VFP to see an example of how to implement a multi-ser safe auti-id function.