I've read a few of the Fog of War posts on here, and I've downloaded one of them, and tried to mimic it, but alas instead of making part of the FoW layer invisable, it just draws a grey box over top.
I was running r95, and thought it might be a bug and have since upgraded to r99. This is a link to a RAR of the project - dl.dropbox.com/u/73629801/Demo.rar so if anyone might be able to help out, I'm sure it's a minor oversight on my part, but I can't figure it out <img src="smileys/smiley19.gif" border="0" align="middle" />