-your words made me once more try to test LyX + TeX. I think this was the fifth time! As usual I was given the "TeX was not fully installed, would you like to run the installer again? Hey, the folder is not empty; I cannot do anything!" stupid talk, but this time I persevered. And finally after an hour or so, I could admire this output:
Quite frankly I think LyX + La/MikTeX-whatever
is based on a neardish almost stupid installer system. But seeing this output I can for the first time begin to understand why some swear to LyX & TeX. All the other times that I've tried to test the combination, one or the other didn't install properly.