Few days ago I started having some problems with nautilus.

Basically when I'm trying to get into a folder it crashes. It's not happening all the time, but in 85% it does... Sometimes, after the crash all my desktop icons are also gone.

The only thing that I think causes this is Ubuntu Tweak - I'm not sure, but the issues started after I did the Package cleaner from Ubuntu Tweaks...

Any ideas?

-------- EDIT ----------

First time, after running the command (nautilus --quit; nautilus --no-desktop) 3 times all the system crashed (except the mouse, I could move the mouse).

After restart I run it and obtain this:

----- Initializing nautilus-gdu extension Initializing nautilus-dropbox 0.6.7 (nautilus:2966): GConf-CRITICAL **: gconf_value_free: assertion value != NULL' failed (nautilus:2966): GConf-CRITICAL **: gconf_value_free: assertionvalue != NULL' failed Nautilus-Share-Message: Called "net usershare info" but it failed: 'net usershare' returned error 255: net usershare: cannot open usershare directory /var/lib/samba/usershares. Error No such file or directory Please ask your system administrator to enable user sharing.

and then this:

cristi@cris-laptop:~$ nautilus --quit; nautilus --no-desktop (nautilus:3810): Unique-DBus-WARNING **: Error while sending message: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.