Here's how to repair these Viewsonic monitors when they have garbage on the screen. You replace C19 with a 1 uf to 4.7 uf at 16 volts capacitor. Now I want to add that if it has a reddish picture with green streaks to the right of the text, you can replace C67. Again use a 1 uf to 4.7 uf at 16 volts capacitor. The capacitors should be available at Radio Shack. I have also encountered one monitor that would not turn on for 5 to 10 minutes. I replaced the capacitor that is just to the right of the C67 labeled IC to fix it. I think it was 22 uf at 16 volts but it might have been 47 uf. I have only encountered that problem once.