Ok quys I uninstall PT4 from my PC and after the new installation all the stuff are the same. I backuped all the config and the database and uninstall again.
I go to the file still up after the uninstall and shoot it.
I install PT4 as new fresh install and boom ! It works, notetracker is reinitialised.
Thanks guys for your help i guess you can shut down this post.
Chris