Err: specified CGI application misbehaved by not returning a complete set of HTTP headers

I keep getting this random error on my home page. Does anyone know what the cause of this could be?

CGI Error
The specified CGI application misbehaved by not returning a complete set of HTTP headers.

Report your OS, server, PHP version information, so anybody could tell you more.

Web Server Microsoft IIS 6.0, psa-autoupdate 1.1.1811.16691
Web scripting Microsoft ASP 6.0.3790.0
Microsoft ASP.NET 1.1.4322.0
SSI 6.0.3790.0
perl v5.8.3 built for MSWin32-x86-multi-thread
python 2.3.2
php 4.3.10 (cgi-fcgi) (built: Dec 14 2004 17:47:59)
Web Publishing Microsoft FrontPage 5.0.2.5012
FTP Server Microsoft IIS 6.0
Database Engine Microsoft SQL server 8.00.194
mysql 4.0.20a-nt
Mailing list software Mail Enable 1.04
Mail Server Mail Enable 1.04
Java JDK 1.4
Tomcat 5.0.19
Web statistics webalizer V2.01-10-RB02 (Windows NT 5.2 ) English
awstats 6.0 (build 1.1)
DNS Server Plesk DNS Server 9.2.3
WebMail webmail 3.2.2
ColdFusion
Spam filtering SpamAssassin 2.63
Antivirus filtering Dr.Web 4.32.2.12010 last update 16.03.2005
Backup psa-bu 7.0.0-win.build041216.03 (1.0.1811.16649)
Expand Agent pleskagent 1 .3.2.3

So far I could tell that it is internal IIS server configuration error. You have IIS server, and nobody could give any warranty that PHP executes on IIS normally. However - when exactly this error appears, when you are trying to do - what operation?

Also, try to uncomment $metaLocation='go'; setting and see what happens...

thanks for the input... I'm sad that PHP is unstable on IIS because I'm a Microsoft Professional and it's basically all I know =( . I tried the metalocation trick and I didn't get any change. I am having problems with another piece of software called agilebill written in PHP so I can see how this is a server error and not a software error ( especially since your software is tried and true ).

Additionally - PHP compiled as CGI module works not really well, specially on IIS.