NEED HELP FOR CGI Error please`

[Demsh]

I am using PHP(4.33RC2) CGI mode with IIS in win2K
I always get this error Msg after the Cacti login window, or every time after I click on "logout user"

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CGI Error
The specified CGI application misbehaved by not returning a complete set of HTTP headers. The headers it did return are:
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However the normal CACTI user interface will show up when i click on refresh

When I click on "Graphs" this shows up at the bottom of the window
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PHP Notice: A session had already been started - ignoring session_start() in C:\Inetpub\wwwroot\cacti\include\top_graph_header.php on line 33
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The reason I use CGI mode is to get pass the php/cacti problem that Ian mentioned
However Under the CGI mode the "graphs" window does not hang anymore but I am still getting Brocken links (some does show up) for those graphs. For those brocken links i have to do right click -->" Show picture" to see the graph

Could anyone pls healp me with those problem ? Thank you very much