On Thu, 2010-01-21 at 14:45 +1100, Peter Horn wrote:
<snip>
Hi, I don't know what causes it, but I can tell you what's happening, thanks to that wondeful Firefox addon 'httpfox'. It's all in the content-type response header, as follows: January: application/pdf December: binary/octet-stream November: unknown/unknown
As a guess, I'd say that the "what kind of file" decision was made at the time it was uploaded to Drupal, and has "stuck" with the file ever since. The data is good in all cases, which is why you can open it locally, and the downloaded December is readable.
Many thanks Peter! Still a mystery as to how the headers got scrambled, but this at least tells me to try removing the offending files and loading them again.
Best regards,