-\twocolitem{\windowstyle{wxRB\_SINGLE}}{If your radio buttons are not
-consecutive siblings, they cannot form a group under Windows and you should use
-this style to indicate that each of them is handled individually.}
+\twocolitem{\windowstyle{wxRB\_SINGLE}}{In some circumstances, radio buttons that are not
+consecutive siblings trigger a hang bug in Windows (only). If this happens, add this style
+to mark the button as not belonging to a group, and implement the mutually-exclusive group behaviour yourself.}
+\twocolitem{\windowstyle{wxRB\_USE\_CHECKBOX}}{Use a checkbox button instead of radio
+button (currently supported only on PalmOS).}