Hi, Clicking "All atoms" in the assignment graph window seems to be a bad thing to do - the window throws a wabbly and keeps redrawing itself for some time. Brian -- Dr. Brian O. Smith ---------------------- B.Smith at bio.gla.ac.uk Division of Biochemistry & Molecular Biology, Institute Biomedical & Life Sciences, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK. Tel: 0141 330 5167/6459 Fax: 0141 330 8640