I created a simple report which drag field from store procedure. Then i have a VB program to call this report and it's work fine in my development machine. After, i deploy this application and report to my client machine and call the report from application (VB) but when the CV viewer come out it promt "Failed to load database information. Details: Unable to load Query Builder component" Anyone have cue about this error ??? How i can fix it ?? Thanks a lot !!