1) at 4x AA, the game stutters a lot and the framerate drops like crazy... not unplayable but very annoying.
2) In the research screen, in the now researching part, the box outlining the research being done has 2 boxes... 1 long and one short, ending right after the tech name, about 2/3 of the long bar.
3) Dunno if something was changed on the approval rate... was having an approval rate of around 75% when I saved my game in 4C. When I loaded said game in BEta 4D, my approval dropped at 7%!!
4) Still can't load large savefiles... it crashes if I try.
5) Got an "effective through year 2232, string not found" in the United Planets tab
6) When clicking on an object to remove it in the upgrade screen, It just won't remove it.
You have some great things and nice additions in there...keep up the nice work!