Great. When will the resizable entities be out too?
Can't say. That kinda thing involves changes to the game's level loading code as well, so we'll see.
So let's say a hopeful mapmaker consistently gets the "Unexpected error when running game" message. From what I understand, this is a signal of inadequate graphical capabilities, and there is no solution besides getting a better computer?
Sorry to hear that. I'll google it and see what comes up. You should give me as much info about your setup. How do you launch the garrison builder? Do you save the exe into its own empty folder before running? What's your OS, RAM, graphics card? Once you've collected the details, post a bug report with all of that info here:
http://bugs.launchpad.net/gg2garrisonbuilder