Repeating subforms issue

Question

I am trying to add a repeating subform, but the page ends right after the first instance. So, when I preview and add another instance of the subform, most of the content is not getting displayed. Can anyone please help? I pasted this subform on a new page and it did, indeed, add new subforms. However, when the page ends, so does the ability to have more instances of the subform.
A second issue is that the button to subtract added subforms does not show up when I add a new subform from the preview. I have checked the code. I used the buttons from the PurchaseOrder.xdp sample. Thanks for any hints!
Suzanne

Answer 1

Thanks, Stephen!
I do have my subform wrapped in a flowed parent subform and have the allow pagebreaks box checked. It just isn't working.
I don't know how to fix that code. For the add button (which works), I have the following:
form1.ConnectorInfo.FlowedSF.PropOptionsSF.Button2::click - (JavaScript, client)
// Get the instance manager.
var oManager = this.resolveNode("PropOptionsSF").instanceManager;
// Invoke the Instance Manager to add one instance of the detail subform.
var oNewInstance = oManager.addInstance(1);
// Invoke the Instance Manager to insert the subform below the current one.
var nIndexFrom = oNewInstance.index;
var nIndexTo = this.parent.index + 1;
oManager.moveInstance(nIndexFrom, nIndexTo);
For the subtract button, which never appears, I have the following:
form1.ConnectorInfo.FlowedSF.PropOptionsSF.Button1::click - (JavaScript, client)
// Get the instance manager.
var oManager = this.resolveNode("PropOptionsSF").instanceManager;
// Invoke the Instance Manager to remove the current instance of the detail subform.
this.resolveNode("PropOptionsSF").instanceManager.removeInstance(this.parent.index);
See any obvious problems here?
Thanks again!
Suzanne