I posted above and forgot to tag you. I should indicate that the USB cable without voltage on it does not work every time it's plugged into the PC. Nevertheless, it seems very wrong that the unit should show a boot screen with only the USB providing power. I could see where this could go wrong amperage wise. I'm not sure why there is not some diode or something keeping it from happening. So, maybe others will report and we can see if there is a collation between these serial numbers and this 'new' issue. So far I'm not been impressed at all with this receiver. I'm also not sure while in D-CR/NXDN mode I get a regular click and the display comes on.Well that does not happen on my AR-DV1, so 'strange' indeed, and a little worrying I feel. When my DV1 is powered down, connecting the USB cable results in the 'connection sound' from the P.C., and the loading of the Drivers, but certainly nothing else.
I wonder if anyone reading thus could please check and report if it happens on their Radio?
If so please quote the Serial Number.