Folks .. after install license, the db2start command say "license not found"  and db2licm -l  no list license , any idea ???

bash-3.00$ db2level
DB21085I  Instance "db2wfl01" uses "64" bits and DB2 code release "SQL08027"
with level identifier "03080106".
Informational tokens are "DB2 v8.1.1.128", "s061108", "U810098", and FixPak
"14".
Product is installed at "/usr/opt/db2_08_01".

bash-3.00$ db2licm -a /usr/opt/db2_08_01/db2ese_c.lic
DBI1402I License added successfully.


bash-3.00$ db2start
11/10/2010 10:01:33     0   0   SQL8000N  DB2START processing failed; a valid product license was not found.
SQL1032N  No start database manager command was issued.  SQLSTATE=57019
bash-3.00$
bash-3.00$ db2licm -l
bash-3.00$