Just a case of mine! Under debian testing I have installed the texlive version of tetex (I mean the tetex version coming with www.tug.org DVD) because is more updated than the boxed tetex deb stuff. Now if I try to install lyx via apt-get debian looks for dependencies (tetex) and doesn't find them. Is there any way to tell apt-get to install the package and to find the missing files in another dir? Ciao Vittorio