I've had the radio for about 2 weeks and finally got the programming cable. I then used Chirp to program some new memories. All seemingly went well. (I routinely use the software on my FT-60) Then I powered off the radio and plugged the microphone back in. Now the radio won't power on. I've tried the factory reset described in the manual to no avail. When I got a Yaesu tech on the phone (kudos to them for short hold times), I described the problem to him and the first question he asked was, "Did you use Chirp to program the radio?" Apparently I'm not the first to have this problem. Unfortunately, the radio is past the return window and I now have to return it to Yaesu for warranty service. So beware: Chirp is great until it isn't.