The monitor on my grandsons computer quit working the other day. The monitor would not do anything, just a black screen. The little green power light would just blink. I don't know anything about monitors but I did take the cover off and I didn't see anything burnt or anything. It worked fine the last time he used his computer and now it won't light up or anything. I had a spare monitor that I give him. This monitor is getting rather old, should I just consider it not worth fixing and throw it away?