RUNTIME ERROR 13 : TYPE MISMATCH ???

VB6 SP4
WIN 2000
EXCEL 2000
ACCESS 2000

I keep getting an error on the line below. as indicated.
I HAVE TRIED CHANGING THE STRINGS TO VARIANTS BUT IT DOES NOT HELP....

I'm trying to import(map)  data from Access to Excel via listbox field selections.
This field go to that column  etc.............


'  ACCESS TO EXCEL

' reopen access
Dim statement As String
Dim conn As ADODB.Connection
Dim rs As ADODB.Recordset
Dim db_name As String
Dim Copycells As Variant
'db_name = Text2.Text
db_name = Text1.Text
    ' Open a connection.
    Set conn = New ADODB.Connection
    conn.ConnectionString = _
        "Provider=Microsoft.Jet.OLEDB.4.0;" & _
        "Data Source=" & db_name & ";" & _
        "Persist Security Info=False"
    conn.Open
Set rs = New ADODB.Recordset
rs.CursorType = adOpenKeyset
rs.LockType = adLockOptimistic


' ==============      reopen excel   Destiniation     =============================
'EFile = CommonDialog1.FileName
   Text2.Text = EFile ' efile is a variable
     Set oDest = CreateObject("Excel.Application")
       oDest.Visible = True
         oDest.workbooks.Open EFile
' ==============      reopen excel        =============================
rs.Open (List1), conn, , , adCmdTable ' all records

        Dim lastSourceRow As Long
         Dim lastDestRow As Long
   
         lastSourceRow = rs.RecordCount    'oSource.SHeets(List1.Text).UsedRange.Rows.Count
         lastDestRow = oDest.SHeets(List4.Text).UsedRange.Rows.Count
 '        ReDim Copycells(lastSourceRow - 1) As Variant
'        oDest.Visible = True
' NEW CODE **********************************************************
'Dim CopyText As String
Dim CopyText As Variant
Dim str1 As String
Dim sourcedest As String
Dim x2 As Variant
'Dim strUnknown As String
'Dim strNext As String
' start Excel to Access import

Do While Not rs.EOF
x2 = lastDestRow + 1
lastDestRow = x2
  oDest.ActiveCell.Offset(1, 0).Range("A1").Select
 oDest.ActiveCell.EntireRow.Insert
   For x = 1 To lvwMap.ListItems.Count
            str1 = lvwMap.ListItems.Item(x).ListSubItems(1).Text
           sourcedest = lvwMap.ListItems.Item(x).ListSubItems(3).Text
    CopyText = rs.Fields(str1).Value
' ERROR ON THE LINE BELOW  RUNTIME ERROR 13 TYPE MISMATCH
    oDest.SHeets(List4.Text).Range(oDest.workbooks(1).SHeets(List4.Text).Cells(x2, CInt(sourcedest)), oDest.workbooks(1).SHeets(List4.Text).Cells((x2), CInt(sourcedest))).Value = CopyText
   Next x
   x2 = x2 + 1
      rs.MoveNext
         Loop
   rs.Close
   conn.Close

' NEW CODE **********************************************************
        MsgBox "Acces Data Import is Completed !"