The Or operator is not working

I have Crystal Reports XI, and I can't get the Or operator to work in the record selection formula. I can get each individual line to work, but once I put an Or statement in, nothing shows up in my report.

{CP_ORDLIN.QTY_BO} > 0 Or

{CP_ORDHDR.CODE_STAT_ORD} <> "Q"

Each line works individually, but once I put the Or operator between them, I get nothing.