Print button not working on re-filling in form.....

Hi all,

Am wondering if anyone can spot why I am having the following issue....I have the following set-up (see below), whereby upon entering a signature (form is used on an iPad), the buttons used are ordered to reveal in a set order, to ensure the user follows a 'flow'. This works perfectly for the first instance of use, and when completeing the last action (reset), everything is as expected other than when the user then fills-in the form again for a second (and subsequent times), the "Printbutton" is revealed as per design, but does not re-open a Print Dialogue option, when it is pressed (everything otherwise as an action i.e. reveal the "Emailbutton" etc. works perfectly!).

Any ideas? the flow is as follows;

Signature Field ("Signaturelast") - this script executes when the field is signed
this.getField("Printbutton").display = display.visible;

Print Button ("Printbutton")
Mouse Down
        Execute a menu item
        File>Print...
        Show/hide a field
        Show "Emailbutton"

Email Button ("Emailbutton")
Mouse Down
        Submit a form
        Show/hide a field
        Show "Resetbutton"

Resetbutton ("Resetbutton")

Mouse Down
        Run a javascript
        this.getField("Hours").value = this.getField("Totalhours").value;

Mouse Up
        Reset a form (resets all chosen fields EXCEPT some specified fields that are 'carried forward')
        Run a javascript
        this.getField("Printbutton").display = display.hidden;
        this.getField("Emailbutton").display = display.hidden;
        this.getField("Resetbutton").display = display.hidden;