Reloading embed PDF in a DIV (empty Accrobat Reader error popup)

I have a web application coded in C#/ASP.NET. The application basically exports a PDF file when the user click on Save. It then reloads a DIV, putting the EMBED (with the src pointing to the newly generated pdf file) in it. Sometimes the embed area just gets black and I get this window from Acrobat Reader: http://img180.imageshack.us/img180/3359/acreader.jpg. What does it mean? Has anyone ever 开发者_C百科see this?

embedding PDF's in web pages is pretty rubbish overall. Try using the open source lib FlexPaper instead;

http://flexpaper.devaldi.com