You could try this in the thisworkbook module -

Dim mSh As Object
Dim mShtName As String

Private Sub Workbook_SheetActivate(ByVal Sh As Object)
Dim sName As String
Dim sMsg As String

On Error Resume Next
sName = mSh.Name
On Error GoTo 0

If sName = "" Then
sMsg = mShtName & " has just been deleted"
Else
sMsg = mShtName & " deactivated"
End If
MsgBox sMsg, , Sh.Name & " activated"

End Sub

Private Sub Workbook_SheetDeactivate(ByVal Sh As Object)
Set mSh = Sh
mShtName = Sh.Name
End Sub

Regards,
Peter T

"Tom L" wrote in message
...
I've been searching for hours, can't find a solution but it's probably
simple...how can I tell what sheet was the ActiveSheet BEFORE they changed
to the current activesheet.

Example: User is on a particular sheet (let's say they're on "Main"),
then
they click the tab to go to the "Prices" sheet. How can I tell what sheet
they're comming FROM - in this case the "Main" sheet? In the Workbook and
the Worksheet events Activate and Deactivate, I check the Sheet parameter
(SH) and it always shows "Prices", the sheet they're going too.

Thanks for your help!