Thanks, Andy.
For some reason, they don't like Windows 7, on my lap top. It's telling me that the drivers are no good.
I have them on my desk top computer, which has Windows 10, but they seem to have stopped working.
I've ordered an AR 7350 and I was hoping to plug it in to read the serial number. I tried a practice run with my AR 9350, but I can't read the serial number on that any more either.
My ultimate aim is to activate the AS3X on both receivers, but no one here knows how to do it. I suspect that I might have to bind the receivers to the DX9 and activate them in there.
I can't register my DXe on My Spektrum, either. For some reason it doesn't come up in the list.
Frankly, I find Spektrum mystifying and opaque.
Cheers
Max