Register tags "flip" forcing VSS checkout?

[Mark]

At the top of my ASP.NET .aspx web page, I have several tags which I've
included below. We store our ASP.NET projects in VSS. Every time I open up
this project, VSS requires me to check out this page. Comparing the local
file to the VSS copy, it keeps flipping the order of the register tags
below. Any ideas on how to keep this from happening? Thanks in advance.
-Mark

<%@ Page language="c#" Codebehind="client_homepage.aspx.cs"
AutoEventWireup="false" Inherits="mycompany.myproject.client_homepage" %>
<%@ Register TagPrefix="uc1" TagName="nav_internal" Src="nav_internal.ascx"
%>
<%@ Register TagPrefix="uc1" TagName="footer" Src="footer.ascx" %>