Whenever I turn on the computer, the monitor does not turn on with it.  The monitor is powered and everything, still able to turn it on and off, but it is as if the monitor isn't connected to the computer at all, because nothing happens to it when I turn on the computer.

 

I have tried this with multiple monitors, so I'm pretty sure it's a problem with my computer.  The monitor just stays black, and while I can hear things loading as the computer boots, nothing happens with the monitor.