autocomplete combo box from contextures.com

[novice973]

Hi, The DataValComboboxSheet.xls sample from the contextures.com site is
exactly what I need for my spreadsheet. However, it causes Excel to crash
(no error code displayed) whenever I press enter or tab. Can someone tell me
why this is happening? I have Excel 2002. Thanks.

The code:

Option Explicit

Private Sub TempCombo_KeyDown(ByVal _
KeyCode As MSForms.ReturnInteger, _
ByVal Shift As Integer)
'Hide combo box and move to next cell on Enter and Tab
Select Case KeyCode
Case 9
ActiveCell.Offset(0, 1).Activate
Case 13
ActiveCell.Offset(1, 0).Activate
Case Else
'do nothing
End Select

End Sub

Private Sub Worksheet_BeforeDoubleClick(ByVal Target As Range, Cancel As
Boolean)
Dim str As String
Dim cboTemp As OLEObject
Dim ws As Worksheet
Dim wsList As Worksheet
Set ws = ActiveSheet
Set wsList = Sheets("ValidationLists")
Cancel = True
Set cboTemp = ws.OLEObjects("TempCombo")
On Error Resume Next
With cboTemp
.ListFillRange = ""
.LinkedCell = ""
.Visible = False
End With
On Error GoTo errHandler
If Target.Validation.Type = 3 Then
Application.EnableEvents = False
str = Target.Validation.Formula1
str = Right(str, Len(str) - 1)
With cboTemp
.Visible = True
.Left = Target.Left
.Top = Target.Top
.Width = Target.Width + 15
.Height = Target.Height + 5
.ListFillRange = str
.LinkedCell = Target.Address
End With
cboTemp.Activate
End If

errHandler:
Application.EnableEvents = True
Exit Sub

End Sub

Private Sub Worksheet_SelectionChange(ByVal Target As Range)
Dim str As String
Dim cboTemp As OLEObject
Dim ws As Worksheet
Set ws = ActiveSheet
Application.EnableEvents = False
Application.ScreenUpdating = False

If Application.CutCopyMode Then
'allows copying and pasting on the worksheet
GoTo errHandler
End If

Set cboTemp = ws.OLEObjects("TempCombo")
On Error Resume Next
With cboTemp
.Top = 10
.Left = 10
.Width = 0
.ListFillRange = ""
.LinkedCell = ""
.Visible = False
.Value = ""
End With

errHandler:
Application.ScreenUpdating = True
Application.EnableEvents = True
Exit Sub

End Sub