Apache Tomcat flushing issues

Hi,

I have a apache[2.0.59]-tomcat[5] setup with mod_proxy. I have a page
in my application which shows status of an activity using progress
bar, this particular page [JSP] regularly sends 'percentage' of
activity completed to the client. I find that the responses from this
page is cached in Apache and sent as a big chunk to the client. But
till this big chunk comes over, no data on the activity status is
available to the client, hence the client has to be contented with a
blank screen.
Is there any configuration to solve this issue? We already tried
flushing in JSP page but with no success.

Note the progress bar works fine when accessing tomcat directly.


Thanks in advance.
Ram