Its annoying, it is happening when in windows and fullscreen mode. The colours look odd.
I think it's nvidia 3D Vision Discover mode that kicks in in fullscreen for MMD. Hitting Ctrl + T should disable it (might have to hit it a few times), but it looks like it does not disable everything correctly. Ctrl + Alt + Insert should also hide/show the message i the corner.
It's strange tho, even when 3d stereo is disabled in nvidia control panel it still activates. I haven't tried this yet, but it can perhaps it can be removed with nvidia inspector tool, by editing the profile for mikumikudance (or switching/deleting the profile).
Ctrl+T worked like a charm on both modes. Thanks
Well ended up deleting the nvidia profile now is ok.
cool :) if for whatever reason you need the profile back, a clean nvidia driver install should reset it.