guys.. i just started leveling my mage classes and i am a bit confused by the damage i am dealing to the mobs.

sometime the damage is awesome, reducing more than half of the target's Hp. but sometime, it give zero damage or damage less than 10.

any explaination to this? or the damage dealt is higher when you are far from the target?

guys, i just bought a razer naga mouse. since this is my first gaming mouse, i just play around with the macro recording stuffs. and i am suprised that i can now click only 1 button to move automatically from uldah to camp drybone. all the camera rotation, walking and everything was recorded in the macro. is this illegal?