Scorpio,
Just fixed it.
I was using 2 monitors before,main one placed on center and another right aligned on windows.
Changed the second monitor of position on windows to the left of the main monitor.
The element editor were still displaying window on the slot were it was used before, making it unable to see, also it was unable to move since the display didn't exist.
Dont know if it is a window reference bug.
Thanks for all!