ID: Q183355
The information in this article applies to:
When you add a ListBox control to a UserForm, the width of the ListBox may change unexpectedly.
This problem occurs if both of the following conditions are true:
    -and-
To work around this problem, use a value that is greater than zero for the width of the first column in a multicolumn ListBox control.
Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article.
Keywords          : kbdta xlvbainfo 
Version           : MACINTOSH:98
Platform          : MACINTOSH
Issue type        : kbbug
Solution Type     : kbnofix
Last Reviewed: April 5, 1998