EZYXR63W

Internal widget has been destroyed. Behavior is undefined.
Explanation
The ListSelectionCB function or the DoLayout function detected
that the Widget  passed into the function is missing or not valid.

System action
The application continues.

Operator response
None.

System programmer response
Use your X Window System/Motif documentation to correct this application
programming error.  error.

Module
Xm.a library.

Procedure name
ComboBox.c