Problem using proxy

Hi All,

I am facing an issue while sending data through a proxy
server. I am using the same HTRequest object to repeatedly
send data though a proxy, which requires basic 
authentication. I observed that the length of the header sent 
in the client request kept on increasing as my application
continued sending more data. Found that the authentication
information is added again everytime the request is sent..
thereby appending to the previous authentication info. This
somehow crashes my application after sometime. 
Any pointers on this. Is this some bug?

Thanks
Nitin