I thought I share this with you guys... Today making the apt-get how to I manage to reneder the application manager unusable by doing a update from apt-get and the N770 rebooting in the middle of it. I know I was in deep trouble but I manage to re install the corrupted files wich was now the aplication manager is working again. let this be a fine example on how things can go wrong to even those who are more experience.
Lesson learn today... Never trust the moment anything can go wrong at any time to anybody