Security Software

Hi,
I have OIM9 configured for SSO authentication with OAM10g. I added logout link per Oracle recommendation (KB 740042.1). It appears though that if I log out and then log in again in the same browser, I can never go back to OIM - it always throws me to my SSO logout URL.
Here is the use case:
1. Select OIM resource
2. redirected to login page, log in
3. redirected back to OIM
4. click on "logout" link
5. redirected to my SSO logout page
- so far so good, all OAM cookies are gone -
6. log in again
7. select OIM resource
8. immediately redirected to SSO logout page

It never happens with other apps (I have 3 so far in my SSO domain)
It looks like some remnants of OIM session still exist in the HTTP session. Can someone please advise, what should I look for? Any cookie to be deleted or something?

Here's logout script that I have in tiles/tjspLogoffTiles.jsp:

<script>
document.location="<SSO logout URL>”;
if(opener!=null){
window.close();
opener.document.forms[0].action="LogoffTimeout.do";
opener.document.forms[0].submit();
}
</script>

Thanks,
Alex