I've been using sound to light (included in the latest version) but I cannot seem to be able to change the audio source in the config section of Sound to Light. When I initially launched sound to light, it gave me the option of selecting the audio source, and it has been working fine, but now I need to change it, but all options in the config section of sound to light are greyed out and not able to be selected. Has anyone experienced this before or has any advice on how to access the audio input options?? Advice most appreciated