BTW, the reason I asked about a timeout issue is, you have your "S3 Auth URL" set to 60, and I'm 99% sure that value is seconds. So any links you generate to private files will only be good for 60 seconds after loading the page with the link on it.
Just to be clear - the way those private links work is, when the link is generated during page load, we request a one-off "password" from Amazon, which is good for XX seconds from the time we request it. So set to 60, you'll only have 60 seconds from page load, till the link won't work any more.
However, having said that, I think there's a bug in how we handle those private S3 links when using the download script option, so they aren't working anyway.
Working on it.
-- hugh
-- hugh