how can i fix my computer? there's a swell of lines at the monitor?

Answer:

nearby is some magnetic interference if you are using the common type that is CRT monitor.



solution 1 : keep hold of the speakers away from the monitor

solution 2 : keep mobiles/cell/ other similar devices away

solution 3 : try to hang on to the desk clutter free from big clocks

solution 4 : check if there is any huge adaptors close your monitor if any remove them from near the monitor

solution 5 : capture a tft monitor.. its having 0 intereference from these considerate of EM or electomagnetic waves
Uhm, if there're lines on your monitor, it expected means your monitor requirements replacing or repairing(if there's still warranty left). If you don't have any warranty departed, don't bother repairing it as the cost will likely be highly developed than the monitor itself.
It's either you monitor or graphics card that's imperfect but before you do anything check to see if the video cable is plugged surrounded by tight in the monitor if that doesn't cure it if at adjectives possible try another monitor if you still have the coiled line later it's you video card.
Trata de entrar en panel de control, luego anda al icono de Pantalla

y ya adentro fijate las solapas que se abren, va haber una que te permite cambiar la frecuencia de tu monitor. Trata de ponerle otra frecuencia tal vez de esa forma soluciones el problema.

Que tengas suerte.