Hi Trey,
Try this please:
If ({rpt_AddressDetail.Addr1} <> "" then {rpt_AddressDetail.Addr1} + chr(13)) &
If ({rpt_AddressDetail.Addr2} <> "" then {rpt_AddressDetail.Addr2} + chr(13)) &
If ({rpt_AddressDetail.City} <> "" then {rpt_AddressDetail.City} + chr(13)) &
If ({rpt_AddressDetail.State} <> "" then {rpt_AddressDetail.State} + chr(13)) &
If ({rpt_AddressDetail.Zip} <> "" then {rpt_AddressDetail.Zip} + chr(13))
Make sure the option 'Crystal Syntax' is chose as the default language and 'Default Values for Nulls' is also chosen from the dropdown.
-Abhilash