Greetings all. First post for me. I have really been enjoying learning the control program with my IC-7000, but I constantly get a "communication error" every time I transmit. I click OK then all is well until I transmit again. IC-7000 with USB/serial cable about 10' long, and less than 3 month old Apple MacBook Pro 13" with current software. Is it RFI? Do I need some ferrites on the cable? I have some of the clamp on ones I can try. The cable works fine as-is on a 10 year old HP with XP and Ham Radio Deluxe, but I like the Mac and Rumtrol much better as I believe it offers more, especially in setting up memories and other rig settings, plus the Mac will last about 7 hours on a charge vs maybe an hour on the old HP.