purpleinopp said: Nancy, do you mean from Windows explorer into the reply box in the browser? That is not working for me.
You drag from your Windows Explorer window into the box just under where you type, like shown (I'm using Firefox, but all browsers should have the same "Drag and drop a photo here..." box):
Edit just to add that you must drag into the outlined box. You can't drag the image into the area where you're typing your response.