Question from Melissa: Hello I have a 4 player Knucleheads game and it has two issues now that I got it working. First, I put a working chassis in it and it looks good but has a shadowy dark roll that pulses up and down sometimes fast sometines slow but pulses most the time execpt when first turned on. Second, the sound has a strange hum that happens when the game makes sound. It makes the sound fine but also a strange hum noise. I’ve have put a couple of boards in such as Bottom Of The Ninth and they still make the hum and the video roll. So any info you could help with would be appreciated. And the monitor is a 25 inch with a K7000 chassis thanks again.