birt viewer problem, able to access db from local designer but not on server

mithrandir

the system i use is birt viewer on apache tomcat 6.0

i am able to design report and fetch data from the remoted atabase server

but after i upload the report on birt viewer on tomcat apache server, i got an empty report with no error message

ps: i am able to run report which link with sample database

cypherdj

Did you include the relevant DB driver in:
WEB-INFplatformpluginsorg.eclipse.birt.report.data.oda.jdbc_2.2.2.r22x_v20071206drivers

Regards,
Cedric