Listbox refresh problem...

[Frank123]

I've got 2 DTC listboxes in a Parent/child relationship format. Everything works good except when you hit Back on the browser the "parent" listbox doesn't refresh, yet the "child" listbox refreshes. I had this problem for a while now and can't seem to figure it out. Here's the code I have in the on change event for the listboxes:

'Parent listbox
Sub Listbox1_onchange()
Recordset2.close
Listbox2.clear()
num = listbox1.gettext()
query1 = "SELECT system from main where site = '" & num &"' ORDER BY system"
Recordset2.setSQLText query1

Recordset2.open()

Listbox2_onchange()
end sub

-------------------------------
'Child listbox

Sub Listbox2_onchange()
Recordset3.close

num1 = listbox1.gettext()
num2 = listbox2.getText()

query3 = "SELECT * from main where site = '" & num1 &"' and system = '" & num2 &"'"
Recordset3.setSQLText query3

Recordset3.open()
end sub

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If any of you can give me any suggestions I'd appreciate it. Thanks U.