I'll preface this by saying that I have used Ogre3D to develop small games in my free time, it's a hobby of mine. So I know that the ogre 1.6.4 dll's run just fine with my setup.
I bought my game via Direct2Drive.com, downloaded and installed just fine. Activated my copy, however when I run the program it just locks up. No ogre.log available, and there was no settings.txt file in my torchlight directory. I do not have an icon for run in Safe Mode. Also, I couldn't run google chrome until I ran a registry cleaner and reinstalled the program. Google chrome wouldn't reinstall until I ran a registry cleaner.
I added a settings.txt file and threw in what was listed in another thread, and it still locks up with no error window, no ogre.log. I played around with some of the settings related to resolution and fullscreen mode, still doesn't respond.
Any ideas?