[Chimera-users] color-by-element in v. 2172

Hi, On the new v. 2172 release candidate, I tried to 'colour by element' a selection of residues in the color panel and got a reply "Nothing applicable to color by element". This is true for both windows and linux. I did this many times before, so has something gone wrong or is there a different path I have to follow to get this type of coloring with the new release ? Thanks for your help. Boaz