Excel Datedif - Days of February

[Excelfun]

Hi Rick
Yes i agree with you; but i want result as 0 Years 1 Months 0 Days
PFA workbook hope this will help.
I have Date1 -01-APR-10 And Date2-31-MAR-11
I enter no of days leave suppose 31 days then; I deduct 31 days from Date2
and i get Date3- 28-02-11 in another cell. Then i use datedif for Date3 And Date2.
it reflect for 31 days - 0 Years 1 Months 3 Days. it should be 0 Years 1 Months 0 Days

And does this problem exist in only 2007 ?