A co-worker recently bought a white RN 4075. The first two atomizers/batteries she recieved didn't work very well. She sent that kit back and the vendor sent her back 4 new white atomizers and 2 new white batteries. The batteries work fine, but I can't get her atomizers to work. She's (understandably) very upset with this. I'm going to assume the atomizers are dead, but before I tell her to return another kit is there something else I could try?