Back then the answers basically were (a) depots, depots, depots; (b) don't put too many troops in one location; (c) don't fight in winter.
Alright. I have taken all this advice to heart. I built depots. Lots of 'em. Basically in every other hex from my port all the way along the railroad to the front. In fact, I have now two railroads in my rear, each one with ample depots.
I also spread my troops over different regions as much as possible. As a rule, unless I want to attack immediately next turn, I have only one corps in a region at any one time.
And after I had rebuilt my armies that had starved in winter, I came back to fight in the summer. It's now June 1864.
Tell you what. My armies are STILL starving for lack of supplies.

What the hell am I doing wrong?

The only educated guess at an answer I can make from recalling what was said in the earlier thread would be "you're still stretching it a bit". Yes, I still have corps just as large as I can build them, with a power of 2,500 - 3,500. And I have five of these monsters based on those two RR lines.
But if that's too much, then plainly I can't see how I should ever be able to overcome my opponent's defenses. Because he, too, has stacks about 3,000 strong in every hex along the frontline. And his men don't seem to starve ...

Any more suggestions other than those already quoted above? Because I am plainly despairing now about ever learning this game well enough to win it. Although I really thought I had understood it now, supply still kills me. At least wherever I try to achieve a numerical superiority against my opponent's formidable main army.

