There is a significant difference in loaded modules. Smalltalk vm listLoadedModules (12 dec 2013 vm) #('SocketPlugin VMMaker-oscog-LucFabresse.306 (i)' 'Matrix2x3Plugin VMMaker-oscog-LucFabresse.306 (i)' 'FloatArrayPlugin VMMaker-oscog-LucFabresse.306 (i)' 'ClipboardExtendedPlugin VMMaker-oscog-LucFabresse.306 (i)' 'SurfacePlugin Dec 12 2013 (i)' 'libcairo.2.dylib' 'B2DPlugin VMMaker-oscog-LucFabresse.306 (i)' 'ZipPlugin VMMaker-oscog-LucFabresse.306 (i)' 'NativeBoostPlugin NativeBoost-CogPlugin-GuillermoPolito.19 (i)' 'BitBltPlugin VMMaker-oscog-LucFabresse.306 (i)' 'FT2Plugin Freetype-Plugin-IgorStasenko.64 (e)' 'UnixOSProcessPlugin VMConstruction-Plugins-OSProcessPlugin.oscog-EstebanLorenzano.43 (i)' 'SecurityPlugin VMMaker-oscog-LucFabresse.306 (i)' 'FilePlugin VMMaker-oscog-LucFabresse.306 (i)' 'MiscPrimitivePlugin VMMaker-oscog-LucFabresse.306 (i)' 'LargeIntegers v1.5 VMMaker-oscog-LucFabresse.306 (i)' 'LocalePlugin VMMaker-oscog-LucFabresse.306 (e)') (350 vm) #('FT2Plugin Freetype-Plugin-IgorStasenko.64 (e)' 'B2DPlugin VMMaker.oscog-jeanbaptistearnaud.769 (i)' 'BitBltPlugin VMMaker.oscog-jeanbaptistearnaud.769 (i)' 'ZipPlugin VMMaker.oscog-jeanbaptistearnaud.769 (i)' 'NativeBoostPlugin NativeBoost-CogPlugin-EstebanLorenzano.20 (i)' 'SocketPlugin VMMaker.oscog-jeanbaptistearnaud.769 (i)' 'UnixOSProcessPlugin VMConstruction-Plugins-OSProcessPlugin.oscog-EstebanLorenzano.43 (i)' 'SecurityPlugin VMMaker.oscog-jeanbaptistearnaud.769 (i)' 'FilePlugin VMMaker.oscog-jeanbaptistearnaud.769 (i)' 'MiscPrimitivePlugin VMMaker.oscog-jeanbaptistearnaud.769 (i)' 'LargeIntegers v1.5 VMMaker.oscog-jeanbaptistearnaud.769 (i)' 'LocalePlugin VMMaker.oscog-jeanbaptistearnaud.769 (e)')