Dynamic shadows with Canvas

Hi all,

I've been trying to make dynamic shadows using the Canvas plugin.

Basically by copying this:

dl.dropbox.com/u/5426011/examples14/shadow_cast.capx

However although as far as I can tell I've copied it exactly, my shadows are not appearing in the right places.

<img src="http://i.imgur.com/HxAgBRw.jpg" border="0" />

The shadows are working as intended, however their position is offset on the Y axis by a couple hundred pixels, and it looks like a few pixels on the X as well.

<img src="http://i.imgur.com/JX0fnHA.jpg" border="0" />

I can't see anything which could cause that, but admittedly I am copying this code more than understanding it.

Any help would be great!

Solved, it was because the canvas object was not the same size as the game area.