I have Reader 10.1.1 on my Windows 7 Asus laptop. It rins very well. Twice this weekend I have updated to 10.1.2 and both times I lost the ability to print anything. I restored the computer using the standard Windows restore and I am back printing with 10.1.1. In the discussion threads I see similar complaints about dupex printing but none as complete as my situation. The system shows the printing progress box and the green bar never progresses and the computer does not react at all. The printer is an HP 3210. I am single sided printing any number of pages.