lol... seems you have asked this question before... about 1 year ago: http://forums.digitalpoint.com/showthread.php?t=67645 and it also seems others have asked the same question before... without getting their questions answered. I really am not sure myself and also attempting to see if it is something that can be fixed or if I must keep deleting those 15-20 MB files from the server as they add up fast. They are apparently caused by something going wrong between the script your running (PHProxy 0.4 ?) and the server's Apache setup. My bets are on the proxy script and not the host.