> > This suggests to me that curl is having some issues, however....
>
> It suggests to me that something is weird. I think it is
> still premature to say this problem is in curl's end alone.
>
> > Does any one have any idea what might be causing this?
>
> If you run these POSTs against another server, just for test
> purposes, I assume you won't see any of these problems.

If I run the same arguments against another local server all goes well, but
the local server in question isn't set up to receive the file (although I
assume curl is still sending it) and it isn't https either.

> I suggest a suitable mix of strace and ethereal (and possibly
> gdb) to understand what's going on when it pauses and to find
> out who to blame for the early disconnected connection.

I have used EtherDetect but my knowledge of the ethernet protocols isn't up
to examining the results, I could send you the trace if you like.

--
Jay