Shell not working properly in emacs on ubuntu

[rj]

Hi,

When i run shell on emacs it's showing some  inappropriate    characters
for eg:
> [[mrj at rj-desktop:/usr$ ls
> ^[[0m^[[01;34mbin^[[0m    ^[[01;34minclude^[[0m  ^[[01;34mlib^[[0m    
> ^[[01;34m\
> libexec^[[0m  ^[[01;34mman^[[0m   ^[[01;34mshare^[[0m  
> ^[[01;34mX11R6^[[0m
> ^[[01;34mgames^[[0m  ^[[01;34minfo^[[0m     ^[[01;34mlib64^[[0m  
> ^[[01;34mlocal\
> ^[[0m    ^[[01;34msbin^[[0m  ^[[01;34msrc^[[0m
> right now i am using ubuntu jaunty, but it was like the same on 
> previous versions.
   How  to correct them?

Thank you
Rihaz