Report Heading Problems.

[atiq]

i am wanting to the following for the report title:

Incidents summary Report by [a combo box field location on a form] Behaviourial Category

This is the expression that i used but didnt work:

="Incidents summary Report by" & " " & [[Forms]![frmSearchByBehaviourCategory]![Combo0] & " " & "Behaviourial Category"

can someone help fix this?