yes, this is a config issue. have a look at http://vim-latex.sourceforge.net/documentation/latex-suite.html
under "9 Multiple file LaTeX projects" for how to do this. -- multifile project files not recognised as Latex https://launchpad.net/bugs/74986 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs