all linux based things are very new to me so i hope someone have a solution to this.
since i bougth my N810 i've been unable to install applications trough the application manager, i can't update the catalogs, i can't do anything with it except to get it running...i check similar problems and their solutions in this forum but none of them work.
i tried "apt-get clean" for example and got this message:

E: Could not open lock file /var/cache/apt/archives/lock - open (13 Permission denied)
E: Unable to lock the download directory

i really have no idea of what to do, i already put it through the update wizard twice and i fixed the memory bug...any suggestions???