parameter query and VBA

[Ouch]

Plese help...i'm tearing my hair out....

the query 'qry_rpt_General' is a parameter query that users 'Between [Forms]![print Bulletin]![Start_date] And [Forms]![print Bulletin]![End_date]' as its parameter,

if i run the query it works fine and gives me the correct result

when i execute the following code it gives an error, 'one or more parameters are missing'

if i take the parameter request out of the query the code runs fine....

any ideas why it doesn't pick up the parameters? (they are on a form and the form is open)

Dim rst As New ADODB.Recordset
Dim SQLstr As String
Set dbs = CurrentDb

SQLstr = "SELECT bibref_id, date_imput FROM qry_rpt_General"

rst.Open SQLstr, CurrentProject.Connection, adOpenDynamic, adLockOptimistic, adCmdText

intaccnum = 1000
rst.MoveFirst

Do Until rst.EOF
MsgBox (rst![bibref_id])

SQLstr = "UPDATE tblbibliog " & _
"SET accession_number = " & intaccnum & _
" WHERE bibref_id = " & rst![bibref_id]

MsgBox (SQLstr)

'dbs.Execute SQLstr

intaccnum = intaccnum + 1
rst.MoveNext

Loop