I put an archer on a tower roof "ledge" and attempted to shoot my other character from multiple angles. Although I can attack my target character, no arrow's will shoot.
This does not apply for patio fences. Everything there works ok.
Here is a picture of what I'm talking about.
![Image](http://oi53.tinypic.com/xoo7id.jpg)
I also reversed the position's, archery can NOT shoot up where Magery can shoot down.
Spare the archer bot jokes...
![Very Happy :D](./images/smilies/icon_biggrin.gif)