Hi I am trying to use iReport-nb-3.5.3-plugin with netbeans 6.7.1 and I have the following problem. Please let me know if there is any workaround for this or if I am using a wrong version of IReport. Step to reproduce the problem: - Create a JDBC connection in netbeans (for example to derby database) - create a report using the wizard, select one of the templates for ease of use. - after you created the report, preview the report, it works fine Now try creating another report :D here you can not create a report because query designer will not work. I tried to write the sql statement manually and after that I find that Ireport lose the JDBC connection somehow and can not validate the sql statement. Same problem happens if you try to change the report and then try to get a preview of the report. Any comment is welcome, Thanks