[Solved] Trying To Install A Device!

About a month ago, I started experiencing issues with a NAD 1050 DAC. To make a long story short, I had to send it in to be serviced, a $300 repair. Luckily, I was still covered by warranty. Anyway, I've got the DAC back again, And I have been trying to install it back on my computer, and I just don't understand why I can't get things going. I tried to reinstall the USB driver I downloaded from NAD's website, but the install wizard keeps telling me to plug the DAC in so it can be installed. I've tried resetting the DAC, used different cables and tried all other USB ports, but the setup continues to tell me to plug it in. Its like the DAC can't be seen? One thing is windows installs a driver for the DAC as a USB input device when I reset the DAC and restart my PC. However, when I try to point the device to the driver I downloaded, it will always say that a working driver is already installed. This is faulty because the setup wizard still says to plug the unit in.
I have even reformatted my computers hard drive and resetting my computers bios by removing the battery...nothing. Another thing, when windows installs a generic driver, in device manager it is under USB input device, while in the hardware list of my pc, it is listed as a HID Bootloader. The only options for the HID Bootloader is troubleshooting and to create a shortcut. I also tried to install the DAC on a different computer too and I still cant install the right drivers. Its almost like the motherboard that was replaced is generic or something, but even still the setup wizard should be able to SEE the DAC, And install everything.
Okay so if theres any advice you have for me, please let me know.

 

Hi, first question is there audio available at the PC's own speakers port?
If so it looks like the DAC itself is still faulty and should be sent back with a similar explanation to that which you have given here.
You have already tried most everything I could suggest and about the only other thing would be a USB headset to make sure the digital audio is actually getting to the USB ports.
If a USB headset will work, it is most definitely a fault on your DAC.

For anyone reading this and not familiar with the abbreviation DAC, it stands for Digital to Analogue Converter and is a device to take digital audio via a USB port so it can in turn be fed into an external Hi Fi amplifier or similar analogue audio device.

Nev.

 

So it looks like I'll be getting a brand-new unit. Called the store where I bought it, and they want to replace the whole thing.