This problem with icons in the fields of registration on CB 1.3.1!!!
1) When you click on (!) does not appears the popup window describing the field (additional information), as it was in version 1.2
2) And if we try to choose different options in the CB -> Configuration -> Show icons in the fields, the field is strongly expanding and back as it was not to return)
P.S Here is an example of an auxiliary window in the old 1.2 version!!!