Good morning, Since I uninstalled " Poser pro 11.1" to install the updating " Poser pro 11.2", impossible to make it work! " Windows 8.1" do not want it and when I try to re-install "Poser pro 11.1" he says to me that my key of licence is not valid!! I wait for a resolution fast because for more than 15 days, I can use this software any more!!! With my gratitude