I do run MX Editor as Administrator in Win 7 64, and I can do almost everything, including "Create and Name Devices" with the Editor. But when I go to the next step, "Create Button Layout" the "Select Template" and "Select Button Layout" boxes are both blank.

I uninstalled and re-installed the software many, many times and nothing worked until I installed it in Win 7 32. Now everything works fine when I boot to Win 7 32.

I really hope 69VanNuys doesn't have to jump through the hoops I did, but at least he's aware of someone else that has had issues. BTW, I've had URC remotes since 2003. I started with the MX-700, then moved through the 800, 850, 950, and finally MX-980, so I've very familiar (although no where at the level of many folks here) with programming their remotes.