Hi, I am using iReport 3.5.2 and have a main report that contains USERIDs and a sub report that contains other info of each corresponding USERID. I don't know how to link the main report and subreport together. What I want to accomplish is when I click on a particular USERID on the main report, the subreport will use that USERID value, retrieve other info from the database, and display them in a new windows. I did a search on HyperLink and drilldown in this forum, but it looks like there is NO solution on how to open a subreport when clicking on a field that is HyperLink. Some people have mentioned the solution, but it's not clear to me as a newbie. I appreciate the help if you can provide a sample report or modify the ones I have provided. Thanks. CD