Hi! I had the same problem, and thus have decided to try and give my best shot at providing more information.
Describe the problem. Skip the subject line for now, but describe the issue you ran into as good as you can in the text box:
* I just got the game, and I was running the game as it comes, as downloaded from the main website.
* I can't get the exact error message, but it was something along the lines off "key has not function on Desktop/megaglest.app/MacOS/glestkeys.ini
* Whenever I press any key, it gives me that error ^ and the keys have not function.
* What were you doing when this happened? Which exact steps need to be taken by someone else to run into the same problem?
* I am running MG on a Mac, not mods or anything
* MegaGlest version
Most recent version, 3.7.0
* Operating system
Mac OS. 10.6.8
* Download location:
http://megaglest.org/download.html