My char randomly move Botton side of the screen!!!!

hey there i come back to warmane 1 day ago download the client and start playing but here is what happen.

http://imgur.com/sTHeAOa

randomly after i teleport into BG ot simple reload my char move to botton of my screen not middle as its suppose to be

its not from any addon because 1 i use same addon folder that i was using on retial when they had 5.4 and on molten for months before the highjack and 2 i test w/o any addon it does happen again.
anyone have any idea what can be the problem ? the client i am using if fresh downloaded from warmane website.

p.s. this is how where my char is suppose to be on the screen http://i.imgur.com/HpVepn4.jpg