Right, I thought XP had that option in the protection, but not...
Ok then, let's use the same trick that works to enable the autofilter in previous versions. Put this in the Workbook module, and change the sheet (And password if you need to)
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<SPAN style="color:darkblue">Private</SPAN> <SPAN style="color:darkblue">Sub</SPAN> Workbook_Open()
<SPAN style="color:darkblue">With</SPAN> Sheets("Sheet1")
.Protect "password", , , , <SPAN style="color:darkblue">True</SPAN>
.EnableOutlining = <SPAN style="color:darkblue">True</SPAN>
<SPAN style="color:darkblue">End</SPAN> <SPAN style="color:darkblue">With</SPAN>
<SPAN style="color:darkblue">End</SPAN> <SPAN style="color:darkblue">Sub</SPAN>
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