I printed a bill to PDF in TS 2012. I didn't get the usual popup asking if I wanted to put the bill in revision, approve, etc. The slips don't show as billed. The bill doesn't show up under proof stage, revision stage or undoable, but history says it's in proof. I can't find the bill so I can approve it and clear the slips. When I go into Billing Assistant, I can print the bill to the screen, but when I try to reprint it to PDF again I get an error message that no data is selected. How can I find the bill so I can approve it and get the slips to show as having been billed?