[Xitami] CGI issues

[RPO]

I am not certain if my problem is related to my script or to the Xitami CGI settings

##### script
I have written a perl script to upload files via the web.  In order to create a Progress Bar I am bypassing the CGI module in Perl and am process the raw STDIN directly and store it to a temporary file, after this code below I then use perl CGI.pm to parse the contents of that TMP file.  It all works fine however any file over 300k causes the server to return this error: "This server is currently overloaded - please try again later", here is my perl code that is getting the POST STDIN:

open (TMP,">$base_dir/postdata$sessionid") ;
while (read (STDIN ,$LINE, 2048) && $bRead < $len ) {
 $bRead += length $LINE;
 $size = -s "$base_dir/postdata$sessionid";

 # slow things down so that the user can actually see the progress bar.
 select(undef, undef, undef,0.35); # sleep for 0.2 of a second.

 $i++;
 print TMP $LINE;
}

##### Xitami CGI settings
Or is this an issue with my CGI settings in Xitami:
    Server Settings:
        Allow Keep-Alive-Connections?   CHECKED, allow up to 25 requests, close after 30 seconds
        Server performance: Normal
    CGI Settings:
        Timeout for CGI programs: 60 seconds
        Check CGI progress every: 200 msecs
        Support 16bit CGI: CHECKED
        Use standard I/O: CHECKED
        Full Environment: CHECKED
       

Anyone have any insights into why this would be occurring?  Is it script parameters or is it Xitami CGI settings?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.imatix.org/pipermail/xitami/attachments/20050825/90286a36/attachment.html