Using Build 07/02/08 Is Tech support Update 08/04/08.  
 
MFG Menu PO-E Edit/Print RFQs.  
 
Select a RFQ to view.  
Click line items.  
Click Exit to exit Line Items  
Select 1st Screen
Click Exit to exit RFQ (Do not save)  
Select a different RFQ from the list (which should have different line items)  
Click the Line Items button for the different  RFQ and you get the line items from the previous RFQ.  
 
We are in edit mode so therefore I see people getting line items from different RFQs quite often because they do not notice and save the lines they have gotten from a different RFQ