Hola!, cada vez que uso opera gx, se sube y baja el brillo de la pantalla repentinamente. He probado otros navegadores, y he hecho otras actividades en el computador y el brillo es normal, no se altera. Sólo ocurre con Opera. ayuda por favor

Hi!, I had been using Opera a few months ago, but, I started experiencing a weird situation. The brigthness of the screen goes up an down witouth reason. I check, and its not a problem of my computer, because, usign other browsers or doing different activities the brightness is normal. I will be so glad if I could fix it. Thank you!!