I'm at a loss... looking for ideas on how to proceed... Still attempting to get our repeater working... rebuilt the computer that crashed, and it works well... Getting strange results when connecting the URI back to the radio (can't find anything wrong there). The fact I can't seem to get a URI, or URIx working with my computer suggests a possible issue with my setup. I have some inputs from folks for changes in the usbradio, or simpleusb which I'd like to check, but need to confirm the URI is working correctly, so I'm not chasing hardware issues by looking at software. I tested my URI using the loopback diagram and uridiag; it passes all the digital, and fails all the analog. I procured a URIx for replacement, and built up the loopback connector for it and tested, same results. I've checked and rechecked my wiring of the loopback connector. The URIx uses two 1k resistors and two extra jumpers than the URI (see below), and the URI two 10k resistors per DMK folks. (There is a confirmed error in the uridiag listed connections). I did not connect the URIx 12 and 20 (Blk and Wht) leads, nor the power supply to activate the 2x amplifier (pins 13 & 25), which I am not using. I'm told the correct connections are as shown below from the URI-FAQ.pdf, with change of 1K for 10K for URIx per DMK, and comparing with the URIx test fixture. Assuming the URIx was good from the factory, and all I did was connect it up to the loopback and computer, turn on the computer with ACID # service asterisk stop # uridiag URIDiag, diagnostic program for the DMK Engineering URI USB Radio Interface, version 0.8, 04/26/11 Found CM119 USB Radio Interface at 001/003 . . . Enter your selection:t Testing digital I/O (PTT,COR,TONE and GPIO).... Digital I/O passed!! Testing Analog at 204 (and 700) Hz... Analog level on left channel for 204.0 Hz (0.0) is out of range!! . . . 24 Error(s) found during test(s)!!!! URI Pin 1 to Pin 7 Pin 2 to Pin 3 Pin 4 to Pin 8 Pin 23 to Pin 24 10K Resistor between Pins 21 and 22 10K Resistor between Pins 21 and 23 URIx Pin 1 to Pin 7 Pin 2 to Pin 3 Pin 4 to Pin 8 Pin 23 to Pin 24 1K Resistor between Pins 21 and 22 1K Resistor between Pins 21 and 23 Pin 5 to Pin 10 Pin 6 to Pin 11 sigh! Thanks, Bob kk6ecm