Velocity Reviews - anonymous & Integrated Window Authentication

HI,

i face some problem when i doing a webpage.

when i develop the page, my IIS is use Integrated Window Authentication
and my page can display correctly

but when i change the IIS to anonymous
my page become blank.
when i go to view source
i get the following code

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=gb2312"></HEAD>
<BODY></BODY></HTML>

may i know how can i do, so my page can diplay correcly when using anonymous
.

thank you.