Victory!

So after hours of trouble shooting, trying four computers, I finally figured it out.... I needed to turn the power supply on. Stupid I know, but I honestly thought that the power supply just powered the motors and that the board got power through the USB port. Well I tried installing the drivers and everything again to get the computer to recognize it and it worked with the power on, and the whining of the motors stopped! Before this the whining was a very high-pitched noise that was really annoying. So maybe it had nothing to do with the trim pots! gonna turn them back up.