unless you have a plugin that is completely messing with the battlescreen, there is only one possible cause.
If you go into the animation database, you'll see that all animations have a position setting. this setting has several selections - and the screen setting always centers the animation on the entire screen, while the options head/center/feet are based on the target picture.
You probably set your skills to an animation that is intended for all enemies and set to screen instead of one of the target positions.