I have two columns of dates which I formatted Arial Bold 14. However when I use the "Control :" sequence to fill in a cell the formatting reverts to Verdana regular 10. I have tried reformatting the columns and then saving the workbook again. Sometimes it works but sometimes when I reopen the workbook at a later time the problem reappears. Also if I click and drag from one column to another the formatting remains as I desire.

I have have a column of times also formatted as Arial Bold 14 and it never has the problem when I use the "shift control :" command to fill in a time.

I'm on a Mac running 10.7.4 and Excel 14.1.3.