Sessions work with with Netscape but not IE

<!--- Application.cfc --->
<CFCOMPONENT OUTPUT="false">

<CFPARAM NAME="Title" Default="">

  <!--- Name the application. --->
  <CFSET this.name="HumanSexuality">
  <!--- Turn on session management. --->
  <CFSET this.sessionManagement=true>

<CFFUNCTION NAME="onRequestStart" RETURNTYPE="void" OUTPUT="true">
    <CFSET request.GradeTable = "S05_253_Grades">
    <CFSET request.dataSource = "courses">
    <CFSET request.dsn = "courses">
    <CFSET request.siteURL = "http://209.200.109.186/sex/">
    <CFSET request.companyName = "FAM 253: Human Sexuality">
    <CFSET request.CounterTable = "S05_253_Stats">

<CFINCLUDE TEMPLATE="header.cfm">
<CFINCLUDE template="course_counter.cfm">

    <!--- If user is not logged in, force them to now ---> 
    <CFIF not isDefined("SESSION.auth.isLoggedIn")>
      <!--- If the user is now submitting "Login" form, --->
      <!--- Include "Login Check" code to validate user --->
      <CFIF isDefined("FORM.SSN")> 
        <CFINCLUDE TEMPLATE="loginCheck.cfm">
      </CFIF>
      <CFINCLUDE TEMPLATE="loginForm.cfm">
      <CFABORT>
    </CFIF> 
</CFFUNCTION>

	<!--- After the page loads. --->
	<CFFUNCTION NAME="onRequestEnd" RETURNTYPE="void" OUTPUT="true">
		<CFINCLUDE TEMPLATE="footer.cfm">
	</CFFUNCTION>

</CFCOMPONENT>