Solutions to a few common problems.

[Thomas]

For the AiNodeContainer, I think a better fix would be:

cVector2l vGridPos(0);
if(mvGridSize.x >0)
vGridPos.x = (int)(vLocalPos.x / mvGridSize.x);
if(mvGridSize.y >0)
vGridPos.y = (int)(vLocalPos.y / mvGridSize.y);

Since other wise vGridPos might be uninitialized + it might be that the x-axis is 0 but not the y-axis of mvGridSize.