How to show the detail information of web dynpro runtime error

hi,
I'm a java developer,During i 'deploy and run ' a web dynpro application on server-1,if the application have some runtime errors. there are displayed many infomation about the runtime error,such as exception track,etc.
But when i do the same on server-2,there just show something like:
500 Internal Server Error
SAP NetWeaver Application Server 7.00/Java AS 7.00
Failed to process request. Please contact your system administrator.
but the server-1 will stop the j2ee engine.
how can do i make server-2 show detail error message as server-1. when i debug web dynpro application need these infomation.
Appreciate your inputs...
(Note:server-1 and server-2 have same software version, i have setup the 'developmode' value is 'true' in VA)
Edited by: BingLin Zhong on Feb 18, 2008 2:22 AM

Follow SAP note - Note 962319 - Detailed error messages with stack trace in Web Dynpro
Thanks,
Praveen
PS.Dont forget to reward points

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