Well... As I was working on some internal improvements, I noticed that the launcher was looking for the old igsf2 files, instead of the new .isdp files. Since D0.31 can't read them (due to changes in how the game saves data), the save manager ended up being useless for a lot of people. So, I uploaded a new update for Windows users that fixes this issue. Also, Northbridge implements a new compression algorithm for the save file archives. I may end up implementing this to the game entirely. For now, the save archives are a little smaller (although it does take a tad longer to complete the task.