Web.show_document jre+ie problem

dear all,
i'm trying to call reports from forms, on when_button_pressed trigger, and it works fine when the report is called from JRE applet (I'm using jre instead Jinitiator) through Firefox.
But, when i call my form with Internet explorer, and click on button, another IE window is opened and got message "Enter your Single Sign-On user name and password to sign in"! [error_picture|[URL=http://img171.imageshack.us/i/ssoproblem.jpg/]]
I tried to set: IE->tools->internet options->general->tabs (on the bottom of general tab)->When a pop-up is encountered:Always open pop-ups in a new tab
and Open links from other programs in:A new tab in the current window, but still not works... :(
Here's the code I'm using on when_button_pressed trigger.
DECLARE
     hidden_action VARCHAR2(2000) :='';
     rep_url varchar2(2000);
BEGIN
     hidden_action := hidden_action ||'&userid=' ||GET_APPLICATION_PROPERTY(username)||'/'||
     GET_APPLICATION_PROPERTY(password)||'@'||GET_APPLICATION_PROPERTY(connect_string);
     rep_url:='/reports/rwservlet?server=rep_ep-pis-03_OH_PORTAL&report=Acc_mrg_izvj_new.rdf'
     ||'&desformat=pdf&destype=cache&'||hidden_action||''     ||'&p_deptno=10&paramform=no';
     WEB.SHOW_DOCUMENT(rep_url,'_blank');
     message(hidden_action);
END;my configuration:
Forms [32 Bit] Version 10.1.2.3.0,
IE: Version: 8.0.6001.18702
DB: 10.2.1...
Thx in advance,
Adnan
Edit: unfortunately, it seems that I have the same problem with firefox. Username which is necessary to logon on SSO window is portal administrator. It means that I have to somehow connect DB and AS (report server services) and allow database users to run reports via Oracle portal...
Edited by: adnanBIH on Mar 25, 2010 10:22 AM

Problem is solved ! This note from metalink helped me: [ID 316223.1]
1. Make a back up of the following files:
$ORACLE_HOME/reports/conf/rwservlet.properties
$ORACLE_HOME/reports/conf/<report server>.conf
2. In the rwservlet.properties:
change:
#SINGLESIGNON=YES
to:
SINGLESIGNON=NO
3. In the <report server>.conf:
change:
   <security id="rwSec" class="oracle.reports.server.RWSecurity">
      
      <property name="oidEntity" value="reportsApp_<hostname>.us.oracle.com_BE6D095BE1044A70957E041E3DB98DE6"/>
   </security>
   <destination destype="oraclePortal" class="oracle.reports.server.DesOraclePortal">
      
   </destination>
   <destination destype="ftp" class="oracle.reports.plugin.destination.ftp.DesFTP">
      
   </destination>
   <destination destype="WebDav" class="oracle.reports.plugin.destination.webdav.DesWebDAV">
      
   </destination>
   <job jobType="report" engineId="rwEng" securityId="rwSec"/>
   <job jobType="rwurl" engineId="rwURLEng" securityId="rwSec"/>
to:
   
   
   <destination destype="ftp" class="oracle.reports.plugin.destination.ftp.DesFTP">
      
   </destination>
   <destination destype="WebDav" class="oracle.reports.plugin.destination.webdav.DesWebDAV">
      
   </destination>
   <job jobType="report" engineId="rwEng"/>
   <job jobType="rwurl" engineId="rwURLEng"/>
...

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Message was edited by:
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<img src="http://img143.imageshack.us/img143/5229/pickak8.jpg">
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