My global.php (I assume this is the one in the root directory, not the ./admin/ directory) is untouched (never edited it), and my external files are in the very same directory. I keep all my external pages that extract data from my vB-database in the same directory, cos yes that's a lot easier for everything.
Anyway, no, I doubt it's a path error. The two lines (85 and 88) in my global.php are:
if ($HTTP_GET_VARS['HTTP_POST_VARS']['action'] ==
$HTTP_POST_VARS['action']) {
unset($HTTP_POST_VARS['action']);
}
$HTTP_POST_VARS['action'] = trim($HTTP_POST_VARS['action']);
(with the second line as 85, and the last line as 88)
Maybe I ought to try this online instead of on my own computer (set up as apache+php+mysql) - that might be it?