If the window isn't just the right size, it won't show all the GED files. I kinda freaked out when I didn't see my files in the folder, but when I resized the window, it showed all of them.
It's actually started from another "issue..."
If I'm editing a game, run it in Game Mode, and it happens to execute a LoadGame() command, it will load it automatically. The problem is that I didn't save my edits for that moment and lose all the changes, because when I go back into Editing mode, it has loaded up the GED file from the LoadGame() function. It would be nice to prevent the LoadGame() from happening, or at least with a prompt telling you it's about to remove the game you're editing in place of this one, regardless if you had made any changes to it.
Anyway, when I return to the Editor, my window is at PocketPC screen-size (240x320), and that's when I go to the Load Game command and I don't see all my GED files listed.
Just a heads-up for people breaking up their game into smaller pieces. Save often, because if it performs a LoadGame(), it's going to replace whatever you're editing!