[Koha] Labels only showing all 0's

Hi guys, I am trying to print off some labels for some books. I have set the correct label template. However, I am having trouble with the layout. No matter what I choose, the barcode is always "0000000" and none of the biblio information is visible. I have tried entering the MARC fields rather than the fields provided but they only churn corrupted pdf files. Has anyone had this issue before? Cheers -- Sent from: http://koha.1045719.n5.nabble.com/Koha-general-f3047918.html