Did you get an answer to your problem? I'm facing the same situation. I've tried what it was suggested on another site (run db2updv8, rebind packages) but it didn't work. Some people wrote, it was a problem in fixpack 3, but I'm running fixpack 4...
My system:
OS: Windows 2000
db2level:
DB21085I Instance "DB2" uses "32" bits and DB2 code release "SQL08014" with level identifier "02050106".
Informational tokens are "DB2 v8.1.4.341", "s031027", "WR21326", and FixPak "4".
Thanks in advance.