|The monitor is working fine, it's just not receiving a video signal. That means the problem is with the tower. It could be just about anything - bad power supply, bad processor, bad motherboard, bad video card, etc. The only thing that does NOT seem to have a problem is the montior. And I doubt there was anything wrong with the old monitor either.|
We need to know your system specs & a more detailed explanation of the problem. For instance, do you hear any beeps when you 1st power on the system?
BTW, it has nothing to do with a virus either.