that's a very weird error code indeed! please post a bug report, but with as much info as you can gather on it.
As far as 0.2.12a, I'm committing (or at least trying to) to the repository now. Sourceforge is GOD AWFUL slow! I've re-organized the data so it wont screw things up and I'll try to get an official release put together tomorrow. Tomorrow, I also have to deal with the incompetent maintenance staff at my apartment complex.
Silnarm, I'm thinking we should break with the compatibility of having GAE in the same directory as classic Glest. The differences continue to grow and with the way I've addressed the problems with the language files containing non-ANSI characters in the file names, it will further that divide. So if you can, please do an svn update and recompile (not much has changed, just the gae_scenarios thing and I changed the default language file from "english.lng" to "en.lng"). Also, let me know any feedback you have on it if you have the time and thanks!
Maybe we should take an opinion poll on the issue?
One more issue, I think we need to modify the "readme.txt" and license.txt" to be more consistent with the fact that the software is GPL. I dunno, then again, we have the more standard COPYING and AUTHORS files in the root directory.
EDIT: Oh, one more thing I forgot in my commit message. I believe that I have all of the changes to the Glest data merged into the 0.2.12's data directory now. The most significant thing I found (aside from all the new scenarios & tutorials) is that they revamped the animation for the dragon dying (I haven't actually looked at it), but I have that merged and I think I got all of the significant changes.