Hello, ianalis.
I'm not sure what you really want to do, do you want to make user's menu to be consistent with system menu? Or make the user have his/her own menu different to the system menu?
If you want to do the previous, you may:
1. Delete ~/.config, ~/.local, and ~/.menu-updates.stamp
2. If you've set update-menus in ~/.bashrc or ~/.kde/Autostart/, delete them all.
3. Keep ~/.menu, do not delete or rename it!
Always configure and update the system menu from Mandrake Control Center. Now the user's menu should be consistent with system menu.
If you want to do the latter, you don't have to delete ~/.config, ~/.local, and ~/.menu-updates.stamp. But remember to add update-menus in ~/.bashrc or ~/.kde/Autostart/. And always configure and update the menus from this user.
*: If you use KDE, make a link of update-menus in ~/.kde/Autostart. If you use other DE/WM, edit ~/.bashrc and add update-menus.