Saved from a previous post...
What version of excel are you running?
There's a bug in xl2k that shows up if you're working with shared workbooks.
If you're not using xl2k and shared workbooks, it sounds like you don't have
permission to save this setting in your windows registry.
I'd talk to my IT folks to find out if they can fix it.
but if you're running xl2k....
You could create a new workbook saved into XLStart (or put this into your
personal.xls workbook) and it'll toggle that option each time you open a
workbook.
In the ThisWorkbook module:
Option Explicit
Public WithEvents xlApp As Excel.Application
Private Sub Workbook_Open()
Set xlApp = Application
End Sub
Private Sub Workbook_Close()
Set xlApp = Nothing
End Sub
Private Sub xlApp_NewWorkbook(ByVal Wb As Workbook)
Application.ShowWindowsInTaskbar = True
End Sub
Private Sub xlApp_WorkbookOpen(ByVal Wb As Workbook)
Application.ShowWindowsInTaskbar = True
End Sub
If you're new to macros, you may want to read David McRitchie's intro at:
http://www.mvps.org/dmcritchie/excel/getstarted.htm