when WYSIWYG is enabled, it will cause all of the images to "shrink" which is why you are having these problems

i recommend disabling WYSIWYG from your display settings and enable code editor instead... the most you can do without restarting the entire code is to delete the width="#" height="#" that has been added to the images... however, it will continue to shrink every time you come back and edit

this is addressed in my rules!