Thank you very much sifo for the link..
Actually i hvnt any experince with x terminal.No i never tried to extract an archive with x-terminal.
plz help me with that wiki page.
when i try to clear the apt cache(i dont know hw to do it as a root)
x-terminal says
"E: could not open lock file /var/cache/apt/archieves/lock- open(13 permission denied)
E:Unable to lock the downloaded directly"


should i entr sudo gainroot code to do it as a root.
Then it says enable RD mode if you want to break ur device.
I havnt installed Rootsh.
plz help me..