[cillianok]

<i>
2. If your web site runs on Microsoft's IIS web server in cgi mode (you can find this out by looking at the main VB admincp page), a key php environment variable DOCUMENT_ROOT is not defined by default. This causes serious problems with the placement of files on your server. LDM detects this problem and issues a fatal error if necessary. If this occurs, edit includes/local_links_init.php and define the constant LDM_DOCUMENT_ROOT. The code highlights where to make the edit. Alternatively, you can patch your web server to define DOCUMENT_ROOT correctly.
</i>

I'm getting this error:

=======================================
Unexpected critical failure
Critical Error: Document Root not set, Edit local_links_init.php
=======================================

I'm assuming this is the error you mentioned?

How/where do I "define the constant LDM_DOCUMENT_ROOT"

or How do I patch the server?

thanks..