Hey, this sounds like me! Except the refueling problem.

I have the exact same mission profile going. My DG2 is at Brighton Beach, and I am trying to
decide whether to return to Earth or go for a Mars mission.
Did you open the fuel hatch? You need to do that at a base. Then it doesn't come up right away.
The base drives a fuel truck out to you and it plugs in, then you will have fuel pressure. There is
no graphics involved, but you will hear the truck engine then cluck-thud, and you have fuel
pressure.
So, open the fuel hatch and wait a minute or two.
If this doesn't work, "What?!?!? It worked for me!"