I had the dropdown box problem telling me that my settings had been changed by another application. Which, I wonder. Well, no matter. after clicking the OK button a few times I realized that there is a half second delay before it comes back. So, I positioned the mouse pointer over the "Assist Me" button and when the OK button came up I his enter and immediately clicked the Assist Me button. The dropdown box has not been seen since. As a precaution I locked the padlock.