Hi:

I'm testing uploading pretty big files (>500M).

So here's what I'm seeing:
With chunk_size turned on and the flash runtime going, uploading takes a long time and devours system resources. So, I try turning it off. Now uploads go much faster with little resource hogging. Awesome!
However, I'm now presented with a standard Windows7 user/pass dialog after the file is uploaded?!

Let be clear: this is NOT the browser's Authentication Required dialogue.

That baffles me.

What's more, the file doesn't make it to the upload directory, so it seems like it doesn't make it out of php's temp dir? I guess?

So I don't think this is a plupload issue, but I've never seen anything like it before.

Our test site does require authentication via .htaccess, and I get past that dialog just fine. That one is the browser's Authentication Required dialogue, as expected.

Has anybody else seen this behavior?

Thanks!
Greg