Hi, I have been using chimera since the late 1990s. In the previous versions I could use MatchMaker to superimpose two molecules and all the atoms were moved with the model. Noe I find that when I use MatchMaker the models are aligned BUT the non-reference structures shoe up in a licorice stick representatuin and I have not been able to either (1) generate a ribbon drawing of the non-reference structures or (2) get an all atom view of the non-reference structures. Am I missing something? The two structures are 1wdn and 1hpb. This happens on both the MAC and Linux platforms. This feature is important to several classes I teach so any help you can give me would be greatly appreciated. John John Rose Ph.D. Associate Professor B204B, The Fred C. Davison Life Sciences Complex 120 Green Street Department of Biochemistry and Molecular Biology University of Georgia Athens, GA 30602-7229 ========================================= Phone: 706-542-1750 Fax: 706-542-3077