Quest givers!

[Syllabear86]

Hi all i wanted to ask how can i solve this problem. All you know the Carbonite's function to show the quest givers on the map, and all of you know that when that quest giver don t have more quest he is deleted by the map(with some exception ). Now i don t know why after patch4.2 when i deleted the old carbonite to install the new one i see again the quest givers in the areas where i completed all quests; for example in Westfall i completed all quests now i see all quest givers, in elwynn forest i completed only some quest i see all quest givers on my minimap. how can i do to clean the map from quest givers in the zones where i completed quests?
Thx Best regards