Tried again, and reproduced the same error. The last build was fine for me, so I only hope you can find what has happened that changed the behavior. Good luck finding that bug, because it's downright annoying.

Code:
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\******>cd C:\Games\Rezolver

C:\Games\Rezolver>game
JumpStart Game Engine: v4.0 alpha - PGD Edition
Developed by: Jeremy Darling of Eon Clash
Initializing Sound Engine...
Initializing OpenGL Render Context...
Initializing Network Engine
Initializing Scripting Engine...
Loading Script: Game.scr
LUA Exception: ...Desktop\JumpStart\v4\Games\PGD07 (Rezolver)\font.lua:112: atte
mpt to index local 'f' (a nil value)
An unhandled exception occurred at $004267A4 :
ELuaException : ...Desktop\JumpStart\v4\Games\PGD07 (Rezolver)\font.lua:(112) at
tempt to index local 'f' (a nil value)
  $004267A4  LUAPCALL,  line 1261 of C:/Documents and Settings/jdarling/Desktop/
JumpStart/v4/lua5.1/LuaUtils.pas
  $00420DED  TLUA__EXECUTE,  line 141 of C:/Documents and Settings/jdarling/Desk
top/JumpStart/v4/lua5.1/LuaWrapper.pas
  $00405A5F  INITSCRIPTENGINE,  line 140 of C:/Documents and Settings/jdarling/D
esktop/JumpStart/v4/lib/scriptingengine.pas
  $00401286  main,  line 73 of JumpStart.lpr

Closing Sound Engine...
Closing Render Context...
Closing Scripting Engine...

C:\Games\Rezolver>