Moving from "unticking" Monitor Cab Off and Monitor Cab on... then back .

Part of the frustration I now have ( the rest I just cant figure at all) is when I now ( using 3.01 ) tick and then re untick the Monitor Cab Off button in the Master setup.It never goes back to what it was like before I do that. It changes the profile ( Im using the Morgan AC20 here) to a boxy icepicky sound that I cant seem to "unchange". Sigh! In fact maybe my ears have just got older than I am. All my older profiles which seemed like a good sound at the time to some extent or the other seem to be that way now. Maybe Im uneducated. I dont stop searching though

Did a complete reset and fortunately had my profiles saved outside and the same result occurred. thanks for your response. I will speak with them.