I've just upgraded to Parallels 11, still running Windows 8.1 and OS 10.10.5 -- networked Brother HL-4040 With this set-up page formatting is destroyed -- a test page formats with a 2" left margin and a 5" bottom margin, 0 top & right. My understanding is that previous parallels upgrades have required the re-instal of the printer. In this instance, I can't do that - printui.dll just hangs