I recently played around with my ffdshow settings and activated "Use overlay mixer" to add some contrast, but it got all messed up and the picture was almost completely gray with some faint colors in it. The problem is that I can't seem to get rid of it unless I uninstall ffdshow. I uninstalled and reinstalled ffdshow and went back to the default settings but the image was still messed up as described above. What could the problem be?