Lines don't mean much anymore.  Since you can place variable
size controls (text boxes, etc) at arbitrary locations in
sections that can grow or shink, there really is no suck
thing as a line on the printer.

You can easily number the detail sections that appear in a
report by using a text box (named txtDtlCnt) with the
expression =1 and RunningSum set to Over Group or Over All.

With a counter like that, you can add a page break control
(named pgNewPage) to the bottom of the detail section and
make it visible when the appropriate number is reached:

Me.pgNewPage.Visible = (txtDtlCnt Mod 12 = 0)

If you mean you want to start a new page every 25 detail lines in a
report, then this can be done.

Add a new control to the detail section
-- Name it LineCounter
-- Set its control source to
   =1
-- Set it to SUM overall
-- Set its visible property to NO

Now add a Page break control to the report at the bottom of the detail
section.  Name the control MyBreak

Click on the detail header and enter
 [Event procedure] in the On Print event
-- Click on the three dots at the end

-- Enter the following in the sub
   Me.MyBreak.Visible = (LineCounter Mod 25 = 0)

-- That should make page break control visible every 25 lines

'====================================================
 John Spencer
 Access MVP 2002-2005, 2007-2008
 Center for Health Program Development and Management
 University of Maryland Baltimore County
'====================================================