Listbox format
 

I have added a listbox to my spreadsheet through the control toolbox. In
addtion, I have formatted the size through properties under the Misc
catagory. When I finished, everything looked great until I updated my
spreadsheet. At that time it appears that the listbox format changed to
auto-fit the selection. I've messed around with this thing all morning and
have not found a solution. Is it possible to lock down the formatting?

Thanks!