Undefined Index Line 40

Here's a patch for this problem.

Function names in Drupal should always be all_lowercase() and use complete words. There's some whitespace issues in the new function, too.

How does core handle this? $_GET['q'] is set by system_boot(), isn't it? It should always have a value...

That was the problem the person who opened the ticket was having, so does that mean this ticket should be closed?

Here is a patch to help the users that may have $_GET['q'] unset for some reason.

Here is an update to the patch with an extra comment to explain the reasoning behind adding the following to the code:

if (!$_GET['q']) {
drupal_init_path();
}

The comment still explains what we're doing, but not why we're doing it. Some users have reported an error, but it doesn't say what. The comment should be descriptive enough that someone who has not seen this thread can see that code, go "why are we doing this?", see the comment, and go "oh, that's why".

Here's an updated comment

Committed. Thanks!