[SOLVED]Light Problem

Hi, I created a spotlight on the scene attached to the camera, but when the camera moves (and the light), light starts blinking creating horizontal lines. Anyone know how to fix it?
PS: i take a screenshot to show what happens to me but in the screenshot no errors appear :confused:

I used paint to simulate the error

PS: the error ocurrs when light is moving.

Seems like tearing? You can try enabling vsync either via SetMode or the engine ‘VSync’ initialization parameter.

thank you very much !! I spent a whole day trying to fix the problem (: