Alright, then. If that doesn't work, though, try changing your Rendering Subsystem.
Go to your FeralHeart folder, and open "Ogre.cfg" with Notepad. You'll see a bunch of codes inside, but I want you to just focus on the very first line.
Here, you can have one of two options for your rendering system:
Render System=OpenGL Rendering Subsystem
OR
Render System=Direct3D9 Rendering Subsystem
One of these will match the one that's already in your Ogre.cfg file. Switch it out with the other one posted above (if it's OpenGL, switch the Direct3D9, and vice versa), then save. This may help you out.