Access report source with date range

I have a ACCESS 2010 subreport with the report source property something like:
Select * from tblNotes where NoteDate > getStartDate()

The function getStartDate() gets date from a form text box:
...

Public Function getWorkloadStartDate() As Date
    'function pair used in srptWorkload, srptCurrentBid etc  record source
    getWorkloadStartDate = Format(Forms!frmWorkLoadPrint_Option.dtpFrom.Value, "yyyy/mm/dd")
End Function

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I have also tried ...

Public Function getWorkloadEndDate() As Date
    getWorkloadEndDate = Format(Forms!frmWorkLoadPrint_Option.dtpTo.Value, "yyyy/mm/dd")
End Function
Public Function getWorkloadStartDate2() As Date
    'function pair used in srptCurrentBid etc  record source
    getWorkloadStartDate2 = Format(Forms!frmWorkLoadPrint_Option.dtpFrom.Value, "\#yyyy\-mm\-dd\#")
End Function
Public Function getWorkloadEndDate2() As Date
    getWorkloadEndDate2 = FormatForms!frmWorkLoadPrint_Option.dtpTo.Value, "\#yyyy\-mm\-dd\#")
End Function


Public Function getdCutOffDate() As Date

    getdCutOffDate = CDate(dCutOffDate)
    
End Function

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...

My report is almost correct, however one user has noted that it does not pick up one of his notes.  I did some testing and although it works perfectly for most notes, it has an issue with a few notes.
If I hard code the record source to be:
Select * from tblNotes where NoteDate > #20/02/2014#
it collects the correct number of notes, however, if the form textbox is 20/02/2014 it misses one or two notes.

If this was VBA know I could use :
"Select * from Notes where noteDate > #" & format(FromDate "yyyy/mm/dd") & "#"

but how do I replicate this in report record source property box?  (remember it is a SUB report, not a report, so I can't set me.recordsource using VBA on the report open event since master child won't work)

Please note I am in Australia where date format is dd/mm/yyyy, not mm/dd/yyyy.
Also note that I have used yyyy/mm/dd after testing dd/mm/yyyy and mm/dd/yyyy unsuccessfully.
I HATE working with dates!