No, I don't experience craziness of trying to edit nor just the letter "a" for My Video. I will say the Menu Designer and DVD menus in general take some playing around to become somewhat proficient. If you are trying to change the "My Video" text in the Menu Designer, that text is not really what you edit, it's just a placeholder for the title. You actually add your title characters in the Create Disc module.
Maybe post a pic of the issues and maybe someone will have an answer.
Jeff