this problem only occurs sometimes, but when it happens there is nothing i can do about it and it keeps happening

sometimes after i send an http request request using a socket connection and then i call mysocket.recieve, the returned integer is 0, and keeps returning 0 (in other words no data is returned from the server!) but my socket remains connected and no timeout\error is thrown!

anyone have any idea on how to handle this? should i set different socket options (i use internetwork, stream, and tcp)....
should i resend the request header when that happens?

please help,
thanx in advance
imadthemad