Crystal Reports Problem with sum of counting fields by group

Message

   Hello,

I have a field gender that has the value 'M' for Male and 'V' for Female.The 
report is a list of students grouped by schoolyear. I need to count the amount of male students and female students for every schoolyear.
I made a formula countmale : 

if {107623_211_OUDLLN_OUDLLN.GESLACHT} = "M" then 1 else 0;

and a formula countfemale:

if {107623_211_OUDLLN_OUDLLN.GESLACHT} = "V" then 1 else 0;

then i summarize the countmale and countfemale fields and put them in the group footer.

The amount of male students is showing correct but the amount of female students is always showing 0 for all schoolyears?

Thanx in advance

Veltjen gerry