I\'ve searched around for an hour, both on Stack Overflow and elsewhere. Alas! Please help. Vim\'s omnicompletion just doesn\'t work.
I have Vim 7.
I used supertab (http://www.vim.org/scripts/script.php?script_id=1643)
Since C-x C-o is a bit frustrating to use
in .vimrc:
let g:SuperTabDefaultCompletionType = ""
then just use Tabb for omnicompletion