Changing width of combobox list

[mcomp72]

I have made a macro-enabled workbook for both Windows & Mac. I am trying to add some combo boxes to some of the worksheets. (The combo boxes are form controls, since they need to work on Mac. ActiveX controls won't work on Mac.)

The list of choices that is displayed when I click the down arrow of the combo box is not wide enough to show all of my choices. Here's a screenshot.

It isn't wide enough to display all the text in the last choice. Anyone know how I can make the list choice area wider without making the combo box itself wider? (I don't want the combo box itself to be wider, because I want it to fit within the cell, as it does in the image.

 

[mcomp72]

I also have the same question for a Data Validation List. I tried doing the same thing with that, and the same problem occurred. The box with the choices was not wide enough. Any way to make that wider?