Tigga - First of all nice work man

.
I have a problem with my installation and I've already seen some other people post about the same thing, but it doesn't seem to matter what I do, I can't get the correct path.
When running the myvbindex.php file, I get the following error:
Code:
Warning: chdir() [function.chdir]: No such file or directory (errno 2) in c:\program files\apache group\apache\htdocs\myvbindex.php on line 13
Warning: main(./global.php) [function.main]: failed to create stream: No such file or directory in c:\program files\apache group\apache\htdocs\myvbindex.php on line 17
My myvbindex.php file contains the following info, relating to my path:
Code:
// Enter The Full Path To Your Forums Here
chdir('/forum');
// No Further Editing Necessary
You'll notice I'm running this on a Windows box

. What should this path be. My directory setup is quite straight forward (so I thought):
<ROOT>myvbindex.php
|
|---- forum
<ROOT> above is the default apache root, i.e. the htdocs folders root directory.
Any ideas?