The memory allocator of your OgreBuildSettings.h probably doesn't reflect the one Ogre was actually built with. Change it to the one used when you built Ogre (or just play with the numbers of #define OGRE_MEMORY_ALLOCATOR. It happens when you update Ogre and forget to replace OgreBuildSettings.h in an alternative include path (maybe your project's).
Svenstaro
2010-03-22 22:52:50