Mouse click accuracy.

[Rincewind]

Great, thanks, I will try both solutions. If its a client side problem then it was probably the same in live, its just been a while since I played so I probably don't remember.

I guess they use screen space bounding boxes for targeting which is not too accurate?

I think nowdays most games calculate world position of the mouse click and do a 3D line check against actual geometry to figure out targeting.

Or another even more accurate way is to draw all targetable objects into a separate texture where each object draws in a different color based on some index scheme and then you lookup the color of the pixel that you clicked on which gives you back the index of the targeted object.

But if we have no access to client code then there is no way to fix that.