I've uninstalled/reinstalled both reversions many times (w/ and w/o 10.1.2 print fix). The thing is, when first installed, both versions print okay, but after computer re-start/reboot printing a pdf file causes a hang of reader. Word, excel, notepad, etc. print just fine. As far as I can tell, duplex mode is not on in 10.1.2. To get a pdf to print, I have to uninstall one version and reinstall another. But it's a one session deal. As soon as computer is rebooted, no printing. Seems as if computer startup switches some setting. OS is Windows XP with drivers up-to-date. Any suggestions?