I am using the webviewer to view PDFs...alot. 90% of the time there is a pdf file that will pop up based on the formula I've used for the webviewer window. However, there are times when there is no PDF to view. Whenever this occurs I get the error message" Cannot find'file///webviwer address calculation.pdf'. Make sure the path or Internet address is correct." I understand why this error message pops up but it can get annoying after a while. Not all of my databases will show this error message when there is no pdf to view in the webviewer. So that tells me that there is a way to shut off the error message. How can I do that?