Hi, Upon making a "tentative assignment" from the assignment popup the button text changes to "cancel tentative assignment", but does not revert once the atom is picked in the atom browser. -- Dr. Brian O. Smith ---------------------- B Smith at bio gla ac uk Division of Molecular & Cellular Biology, Faculty of Biomedical & Life Sciences, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK. Tel: 0141 330 5167/6459/3089 Fax: 0141 330 4600 ------------------------------------------------------------------- The University of Glasgow, charity number SC004401