I boot up my old computer. And instead of begining the boot up it just has weird looking colors all over the screen, it won't actually boot up because it never leaves this screen. it's just random colors all over the place. I've taken this machine to a professional PC repair shop and they fixed it once and said it was that the processor got deprogrammed. Is there anyway I can reprogram it myself and how and what do I used to do this. Thanks in advance for any help.