I am still unable to get sound out of my speakers and I think there is a way to change the 861 from XLR output to Meridian Digital Output, but only via a computer.

My laptop doesn't have a serial port out, so I think that USB to RS232 is what I need. The one that I have won't connect the computer to the 861. The plugs do connect. Any ideas?

Is there something special I need to hook up my 861 to my laptop?

861v4, 800v2 , 6x DSP5000, DSP5000C, 519