Just wondering because my laptop ran into an error problem and now it says needs to be activated while when I give it the seriel number it kind of refers to  my playchess server and says I all ready have that seriel number activated. thus I lose the lets check function on my laptop yet still have on my desktop.

Obviously this wasn't a problem in fritz 12 as activation was for the playchess server and not the lets check feature that is now in fritz 13 which i feel is a better open book than the game.