DB13: ORA-01031: insufficient privileges

Hello All,

I entered the t-code DB13 and I have the following error: ORA-01031: insufficient privileges, which I re-searched on the OSS for support and I found this note: Note 1028220 - ORA-01031: Insufficient privileges despite SAPCONN role, which I have verfied all the permssions and roles. Still no luck on accessingt he DB13 t-codes. I tried to execute this SQL Script that is being executed by Db13 in OS using SQL Plus. i still get the same error. I am not sure what permission I am missing here. Could you please tell me what I am exactly missing here.

SELECT beg, funct, sysid, obj, rc, ende, actid,
 line FROM sap_sdbah  WHERE beg BETWEEN
 '20090105000000' AND '20090210235959' AND sysid =
 'BIQ'

SQL> select grantee, granted_role, default_role  2        from dba_role_privs  3         where grantee = 'SAPSR3';

GRANTEE                        GRANTED_ROLE                   DEF
------------------------------ ------------------------------ ---
SAPSR3                         SAPCONN                        YES

I did run this script: sapconn_role.sql to set the permission correctly. No luck.

Note: I logged to the system as <SID>adm user.

Thanks in Advance

Thanks

Kumar