How to avoid 1.# INF in a Descendats based TOTAL?

Hi Gurus,

I'm struggling with the following SSAS 2008 cube calculation that needs some updating:

CalcMeasure3= IIF(MyHierarhy.CurrentMember.level.ordinal = 1, SUM(Descendants(MyHirerarhy.CurrentMember,1,SELF),[CalcMeasure1]*[CalcMeasure2])/[CalcMeasure1],[CalcMeasure2])

In Excel 2010, if I look at the results using MyHirarhy at the specified ordinal, I would get:

Row               CalcMeasure1                       CalcMeasure2                CalcMeasure3

#1                 Number                                 Number                        Number

#2                 Number                                 Number                        Number

#3                 1.# INF                                  Number                        Number

TOTAL           Number                                 Number                        1. # INF

The goal would be not to use Row #3 in the CalcMeasure3 TOTAL when CalcMeasure1= 1.# INF. That would be the first part of IIF function. Hopefully :)

Best wishes,

Kaarel.