Oh, good God no, I am not upset, I could sense your frustration but let's not forget it's just a hobby and sometimes we need to step back and get some perspective. I myself have been up until the early hours furtling about with amateur radio things that, at the end of the day aren't going to change my life. That's what real problems come along for, to put perceived ones in their place
I am a glorified mechanic, so this DATV stuff is a steep learning curve, but that's what keeps the little grey cells active at my age. I ask questions that to an electronics or software engineer will appear naive, so no doubt some readers will chortle at them, but we all start somewhere and I find this forum generally very accommodating and helpful.
When I feel I am asking a daft question I just think, OK, sod it, if I gave this guy a V10 Judd F1 engine in bits, in boxes, how long would it take HIM to achieve a running engine? It's horses for courses and I think most members appreciate this. I am sure you will be up and running on the MAC soon, I have never used one, and I am pretty much a raw beginner with amateur TV generally, I'm old and curmudgeonly, but I hope my input has been of some small use to you.