The config.exe thing is normal, it seems, as mine does the exact same thing. It's probably the patch overriding IN's built-in vsync and it needs it disabled to work. As to why it's not working for IN for you, I have no idea, it works fine here. Any differences between fullscreen and windowed? Also, what number do you have Vsync set to in the ini (i.e. 0, 1)?