E1 AS/400 installation problem

Hello list attempting to install E1 8.11 SP1 on iSeries AS/400 V5R2 with latest ptfs, and during the installation around when it reaches 3% the following error is recieved

(Feb 7, 2006 2:49:45 PM), Install, com.ibm.wizard.platform.as400.IBMAS400ProductServiceImpl, dbg.install, JVM memory before installing Environment Variable Update (bean34): free=9745304 total=29523968
(Feb 7, 2006 2:49:45 PM), Install, com.ibm.wizard.platform.as400.IBMAS400ProductServiceImpl, msg1, installing Environment Variable Update (bean34)
(Feb 7, 2006 2:49:47 PM), Install, com.installshield.product.actions.EnvironmentVariableUpdate, err, An error occurred and product installation failed. Look at the log file /E811SYS/log.txt for details.
(Feb 7, 2006 2:49:47 PM), Install, com.installshield.product.actions.EnvironmentVariableUpdate, err, ProductException: (error code = 200; message="Java error"; exception = [ServiceException: (error code = 200; message = "Unexpected return code."; severity = 0; exception = [com.ibm.as400.access.InternalErrorException: Unexpected return code.])])
STACK_TRACE: 16

Does anyone have any experince with this error? I have attached the log for full reference.

I think you don't have your jt400.jar file up to date.

Hi, I'm having the same problem
Did you solve it? Any suggestion?
Heeelp!!