For anyone else who's ears have just pricked up on hearing that you can do your own normal maps in GIMP...

You can start with a height map (make sure it really is a height map with black as the deepest part and white as the highest part) and use Filters->Generic->Normal Map.

More coral, weed and a few anemones to go with the old stuff, and the new grungy rocks :)

The effect can also use an ordinary png image to generate the displacement.

Not being a technical person I can't explain the exact maths, but the visual appearance of the image or normal map should give you an idea of what the displacement will look like.

I love it :)

Might need a few place names, but nothing too 'shouty' or it will overpower the map.

I had this problem myself not that long ago, and it was caused by the lack of a map note.

If you open the map notes |CC2NOTES| there should be one there called "Resize".

If its not there create a new map note and call it Resize

Ok will bring up an Edit Text box, into which you need to type the command "Stretch".

Ok makes everything vanish, but if you open the map notes again you will see the Resize map note has been added.

Now try resizing your map again.