I've just read a question about refreshing Acrobat/Reader "Refreshing PDFs on the Web" Feb 8.
I just experienced a similar problem. I was overwriting an existing pdf with a new one but the old one kept downloading.
Even if I deleted all pdfs the old one still loaded. I refreshed, Ctrl refreshed, cleared the browser cache and tried in Firefox and IE.
Then I had a thought, phoned our IT Dept and got them to clear the proxy server cache - sorted.
ted
The author of numerous books on Acrobat, Photoshop, Illustrator and the Adobe Creative Suite, and an international speaker on Adobe Acrobat, Ted Padova is a well-known PDF guru.