>This form works ok in development, at runtime it displays 'record is out of range' error. The error generates after clicking a command button. The fun part is that it says 'In .CMDRUN.CLICK at line 0'. The form does not have any tables loaded.
>
>TIA

Most case is the record pointer has jumped to EOF but you still need to show record content. This will cause problem especially at GRID. For other controls, such as textbox, it will be disabled.

In my case, similiar when I put a command button which allow Undo Add New
record! That is, Tablerevert() on Grid adding new Orderline.

Quite problem even using refresh, the grid still show No record(s).
THis happen especially at last record and add new then Undo!
Finally, I make some tricky refresh and locate record and fix it.
But I don't think it is a good practice. >~<"