• For the Parenthesis:

    =IIF((Globals!RenderFormat.Name = "EXCEL" OR Globals!RenderFormat.Name = "PDF"), False, True)

    Nested

    =IIF(Globals!RenderFormat.Name = "EXCEL" , False,

    IIF(Globals!RenderFormat.Name = "PDF", False, True)

    )

    I think you have too many versions in part 3. lol Do you mean Bids 2008 and SSRS 2012?