I spent all afternoon trying to program my new TM-V71a on my Mac. First with CHIRP, which I use for my Baofengs: With a new FTDI cable (the Baofeng cable has the wrong connector at the radio end) I was able to open up 1000 memory locations, each of which was blank except for 5 MHz offset. A message told me that I was "live" and would have to make all changes to a .csv file, but when I tried to export it brought up another little window and ultimately I could not save any .csv file.
With RT systems and their cable, I tried downloading a trial version of Crossover for Mac, but when I tried to install from RT's software from CD, it said it could not do it because of either anti-virus software restrictions (which I don't have any anti-virus programs on my Mac) or because the Firewall was on (it was on, but I turned it off in settings).
I think I'm at the point of buying a used XP laptop for $100 to be used for nothing but support of my radio hobby, but before I do that I thought I'd see how others here have solved the problem.
Thanks!