Drill down problem when execute CR Viewer from Sap Web Application Server

Question

Hello,
We are using Sap  Was 7.01.
The report viewer jar files deployed to the j2ee engine , and I am using j2ee servlet application to execute the report.
Everything works OK, but when I am trying to drill down to the next sub report the screen become blank.
I checked with httpwatch and it seems that there is no response from the server , after DD.
The web.xml file look like this:
<web-app>
     <display-name>WEB APP</display-name>
     <description>WEB APP description</description>
     <context-param>
       <param-name>crystal_image_uri</param-name>
       <param-value>./CrystalReports/crystalreportviewers</param-value>
      </context-param>
      <context-param>
       <param-name>crystal_image_use_relative</param-name>
       <param-value>server</param-value>
      </context-param>
      <context-param>
       <param-name>crystal_servlet_uri</param-name>
       <param-value>/CrystalReportViewerHandlers</param-value>
      </context-param>
     <servlet>
            <servlet-name>CrystalReportViewerServlet</servlet-name>
            <servlet-class>com.crystaldecisions.report.web.viewer.CrystalReportViewerServlet</servlet-class>
    </servlet>
     <servlet>
          <servlet-name>reportviewerClient.jsp</servlet-name>
          <jsp-file>/reportviewerClient.jsp</jsp-file>
     </servlet>
     <servlet>
          <servlet-name>ReportViewerSrvlt1</servlet-name>
          <servlet-class>com.illumiti.demo.ReportViewerSrvlt1</servlet-class>
     </servlet>
    <servlet-mapping>
          <servlet-name>CrystalReportViewerServlet</servlet-name>
          <url-pattern>/CrystalReportViewerHandler</url-pattern>
     </servlet-mapping>
     <servlet-mapping>
          <servlet-name>ReportViewerSrvlt1</servlet-name>
          <url-pattern>/jRun</url-pattern>
     </servlet-mapping>
</web-app>
There are no javascript errors and I can see that the following JS files exist on the browser cache:
allInOne.js
allStrings_en.js
crv.js
Also the dynamic rendering of the graphic objects working,  for exampale:
http://sapdevpor.themigroup.net:52000/ReportViewerNwds/CrystalReportViewerHandler?dynamicimage=crystal1258027361240644774257355486184.png
sapdevpor is the Sap application server.
Need help with this asap.
Thanks
Nir

Answer 1

Hello,
to which directory have you unzipped the Files? I would suggest C:\temp because there are problems with long filenames. Have you tried to reboot and then disconnect Drive M:?
Regards
Gregor