Hiding Blank Rows

Hello

I have a very simple crosstab report which is working fine but with just one minor issue.

My Sql looks like this

I am applying these groups to my Crystal Report Crosstabs and showing as rows the following:

Rows

Type -> Ggroup -> subGroup -> projectname -> SubProject

Columns

colName and date

Summarized Fields

sum of Value

My Issue can be seen in the snapshot of crystal report

I understand why i am having these blank rows, since they are showing the 'SubProjects' ... BUT.... BUT... thats 'NULL' in the database, and should not even show in this report. If the 'SubProjects' are NULL, simply just don't show them, and instead show 'projectname'.

Is there a way to go please???

Thanks