has anyone had an issue were ColdFusion session variables never timeout on a server?

I am having an issue on one of our production ColdFusion 9 servers where the session variables are never timing out.

I set up a very simple page to make sure I'm not missing something.

Application.CFC page (I tried Application.cfm as well)

<cfcomponent>

<cfset This.name = "TestApplication">
<cfset This.Sessionmanagement=true>
<cfset This.Sessiontimeout="#createtimespan(0,0,1,0)#">
<cfset This.applicationtimeout="#createtimespan(5,0,0,0)#">

<cffunction name="OnApplicationStart">
<cfsetting showdebugoutput="yes" enablecfoutputonly="No">
</cffunction>
<cffunction name="OnRequestStart">
<cfdump var="#this#">
</cffunction>
</cfcomponent>

Index.cfm page

<cfif isDefined("Session.TimeStamp")>
<cfdump var="#Session#">
<cfdump var="#Application#">

<cfoutput>#Session.TimeStamp#</cfoutput>
<cfelse>
<cfset Session.TimeStamp=Now()>

</cfif>

The TimeStamp session variable never times out and once it is set the first time. I can leave the page up for days and it still won't time-out. My maximum session timeout on the server is set to 2 days. The only way to get rid of the session variables is to clear the cookies on the browser.

Has anyone seen this type of issue before?