Thank you for your reply.
I am using the ActiveX control. I have alse tried the Report Designer Component, all of them act the same way. If I put a message box they display the report and if not then the report comes up as a blenk page. I have tried to put a delay before activating the report, but that did not help. I tried with up to 60 seconds of wait time, but the report still came out blank.
To answer your second question, I am not sure if I understand it completely. By data calculation do you mean formulas in the report?