I have Reader 8.1.2, Vista Ultimate and an HP OfficeJet J6450 connected via an Ethernet connection on the same subnet. It takes 5 minutes (I've timed it several times) to start printing any PDF file. The printng is fine, it's just the 5-minute delay waiting. During the interval the "Progesss" box indicated 'Not Responding' and 'Preparing: 0%' is displayed. Then 5 minutes later the printer starts printing. Any other application prints without delay. I tried setting the printer to "Fast Draft" but that had no effect.