menu home item stay's on every page
Have you tried going to the blocks administration page and checking which blocks/menus are being shown where?  This will allow you to locate the one that you don't want displayed; if it's a menu, you can then go to the menu administration page, find the menu in question, and delete the home page link from it.

Make sure you visit the administration page for the theme that is causing the problem; block placement is configured separately for each theme.