I have been using dropbox for a long time on Ubuntu 12.04, but one day it got stuck syncing so I killed it with pkill (as it stopped responding). Unfortunately I didn't check afterwards if it worked, so I dont know if this has anything to do with my problem.
When I wanted to use dropbox again (right after startup) I noticed that dropbox wasn't running. Starting it from dash did nothing, so I tried starting from terminal, but that told me that the daemon wasn't installed. I tried installing it with 'dropbox start -i', as suggested. This started downloading and then unpacking, but the unpacking got stuck at 90 some percent. After this I reinstalled dropbox, but the problem remained the same...
Does anyone know what could the cause be or how to fix it?