Hi.
There is a bug in Administration/Modules/OrderDetail.ascx
In line: 438 the line:
<asp:BoundField DataField="<% $NopResources:Admin.OrderDetails.Products.Quantity %>"
HeaderText="Quantity" HeaderStyle-HorizontalAlign="Center" ItemStyle-Width="10%"
ItemStyle-HorizontalAlign="Center"></asp:BoundField>
Should be:
<asp:BoundField DataField="Quantity"
HeaderText="<% $NopResources:Admin.OrderDetails.Products.Quantity %>" HeaderStyle-HorizontalAlign="Center" ItemStyle-Width="10%"
ItemStyle-HorizontalAlign="Center"></asp:BoundField>