@Cesco: I think your start menu looks different, because you have not installed koreader or vlasovsoftlauncher. If you do, the menu will automagically add them to the menu.
Another trick might help with the microSD. After my microSD had mounted several times without problems, suddenly it seemed not to work anymore. So I startet nickel, then closed nickel with the exit_nickel symbol in the library and tried again. This time the micro SD would mount without problems.
Maybe it works for you too. Good Luck!
