Connection reset by peer on first request

Hi,

I’m using Nginx with php-cgi. A problem arose recently where if you
have
not used my site for a few minutes and then go to it, the first request
is
always ‘connection reset by peer’. If you refresh, everything functions
normally until you leave for a few minutes and go to another link. It
happens 100% of the time. Does anyone know what could be the problem?

All I get in error log with debug on are these messages:
2012/11/14 17:25:46 [info] 3454#0: *2516 client prematurely closed
connection while reading client request line, client: *, server:

Also, these coincide with the 400 bad request errors in access.log. I
have
tried restart dns server, nginx, php-cgi, etc, but to no avail.

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