Hello, I'm using coot 0.6-pre release 2172 via fink after selecting a DNA base to edit and selecting the chi angle that I would like to move I get the following errors when I drag the mouse: Click on an atom in the residue that you want to edit (setup-edit-chi-angles 1) (0) C2 ,B/1/chainid="D"/12/Td, occ: 0.5 with B-factor: 59.52 element: C at (12.9416,43.7868,26.0509) : 0.0562567 Use the 1,2,3,4 keys to select rotamers, 0 for normal rotation mode (setup-edit-chi-angles 0) (set-show-chi-angle-bond 0) WARNING: this vertex 11 has no children (strangely) bond: 6 index2: 11 tv1 (index: 9) has 1 children WARNING: this vertex 11 has no children (strangely) bond: 6 index2: 11 tv1 (index: 9) has 1 children WARNING: this vertex 11 has no children (strangely) bond: 6 index2: 11 tv1 (index: 9) has 1 children WARNING: this vertex 11 has no children (strangely) bond: 6 index2: 11 tv1 (index: 9) has 1 children WARNING: this vertex 11 has no children (strangely) bond: 6 index2: 11 tv1 (index: 9) has 1 children WARNING: this vertex 11 has no children (strangely) bond: 6 index2: 11 tv1 (index: 9) has 1 children WARNING: this vertex 11 has no children (strangely) bond: 6 index2: 11 tv1 (index: 9) has 1 children WARNING: this vertex 11 has no children (strangely) bond: 6 index2: 11 tv1 (index: 9) has 1 children WARNING: this vertex 11 has no children (strangely) bond: 6 index2: 11 tv1 (index: 9) has 1 children WARNING: this vertex 11 has no children (strangely) bond: 6 index2: 11 tv1 (index: 9) has 1 children WARNING: this vertex 11 has no children (strangely) bond: 6 index2: 11 tv1 (index: 9) has 1 children WARNING: this vertex 11 has no children (strangely) bond: 6 index2: 11 tv1 (index: 9) has 1 children WARNING: this vertex 11 has no children (strangely) bond: 6 index2: 11 tv1 (index: 9) has 1 children and nothing happens Any ideas? Thanks, Scott