Occasionally the Dragon NaturallySpeaking speech engine will get mixed up about whether or not the program or field in focus is something you should be able to type text into. When this happens you’ll see lots of question marks in the recognition box.
The problem is usually easy to fix — move the focus out of whatever program this is happening in, then back in. Here’s a quick way to do that — the UC command “Notepad Open · Notepad Close”.