No Sound!!

CountMike said:

Blue port on the monitor is input for sound so to have any chance of getting (if there are speakers in monitor) analog sound from computer is to connect it to green output on computer.
Blue (on monitor) > Green (on computer). Green connector on the monitor is pass thru to connect some external speaker or headphones to it.
As for VGA vs. DVI, apart from possibility to let sound thru is that less possible interference to signal and ability to use much longer cable. DVI could also be used to convertto HDMI or display port while VGA would need an active converter.

I couldn’t use the DVI cable, because the computer doesn’t have a DVI cable hookup. However, there is a DVI hookup on the monitor. Why would Acer supply a DVI cable when there’s not a way to plug it up to the computer? The monitor’s port for the wire with the green ends is not blue. It’s black.

Jesse Williams said:

I couldn’t use the DVI cable, because the computer doesn’t have a DVI cable hookup. However, there is a DVI hookup on the monitor. Why would Acer supply a DVI cable when there’s not a way to plug it up to the computer? The monitor’s port for the wire with the green ends is not blue. It’s black.

I see that the PC has only VGA and HDMI video ports.

If Acer supplied a DVI cable with the monitor, they also should have provided a HDMI male to DVI female adapter. If you were interested in using the digital interface, and don't have such an adapter, Amazon has them for a few dollars.