wow... maybe this problem is solved with just a few clicks or on line in x-term (and it's too easy for me to see it ^^) or you're having a veeeery big problem out of nothing (?!) and must reflash your device.
(as long as you can make a backup this is nothing serious )

edit: just for having a look at the reflash topic -> http://wiki.maemo.org/Updating_the_firmware