Unable to read .lit book in MSreader

[r0b3rt]

I tried to install MSreader on my X50V to read davinci code and I got an error that I have registered 6 devices with my passport login and cannot activate anymore devices. So I created a new passport login and activate MSreader when I tried to open the book I get another error stating that I dont have the rights to open this book and I should try to reactivate MSreader, is there a way to get around this? Or is there another ereader that I can view .lit files in??