How often are your misting the cage? What is your humidity? I would offer a mouse pinky and see what she dose. If she doesn't eat it then wait a few days. Make sure she has enough hides to feel comfortable. What are you using for substrate? Do you have anything in the tank for her to climb on? My tokay likes to hide in his upside down flower pot (It has a hole in the center for him to come and go). Also try covering the tank and give her some privacy.