Hi - tested in the latest (6.1.5) and also 4.0.something.

If I choose output to a PDF & the PDF is open in Acrobat Reader, when I run the report, the file is not updated and there is no warning that the file could not be opened. The report closes normally just as if it'd written the file.

Shouldn't DR tell the user that someone has it opened? Yes, I can do a timestamp filename, but that gets cumbersome.