Tell me i'm not mad (no sub cats showing)

I have done this a thousand times but for some reason I simply can't get this to work today.

ZC 1.3.8a + Image Handler - Overrides template - all sideboxes off

I have:
Top category

• sub category
• sub category
• sub category

Each sub cat has an image assigned to it.

Clicking top category displays the title ... but nothing else.
I checked all the possible prefs in admin to show sub category images.
I checked using the default template
I checked all preferences against a working site
I downloaded another fresh copy of ZC and compared the index files
I even checked the preferences on the files/ folders
Everything is exactly as it should be.

But for some reason - clicking 'top category' displays nothing on the page except the title 'top category'.
I checked the generated code -

<div class="centerColumn" id="indexCategories">
<h1 id="indexCategoriesHeading">Top category</h1>
<!-- BOF: Display grid of available sub-categories, if any -->
<!-- EOF: Display grid of available sub-categories -->
</div>

As you can see

NOTHING IN HERE!

Show me the error of my ways and prove I am not losing it!!

PS - I can PM the URL if needed

Thanks in advance.

I can confirm my problem isn't that I am mad, just tired and after a few hours sleep - The answer is:

Admin - configuration - Product Listing - Show SubCategories on Main Page while navigating <- This was set this to 0

Back to work everyone!!