I just finished downloading Poser 11... I have the hard copy of Poser 10 so this is an upgrade... I have Windows 7 on my computer.. The download installed a shortcut on my descktop. I click the shortcut and it wants registration info before it will start Poser 11... I have always purchased the physical copy of Poser in the past .. I haven't been able to start Poser 11 as it states there is something wrong with my serial numbers on my new or previous copy.... So in the serial numbers are those Zeros or the letter O ??? I have tried both and gotten nowhere !! I thought for 49.00 half off I would try the download... Any help out there ???