I installed Vundle via the instructions given at this blog http://web.archive.org/web/20120731003342/http://www.charlietanksley.net/philtex/sane-vim-plugin-management
bu
I had this problem using git commit or crontab -e
git commit
crontab -e
These commands seemed to invoke vi instead of vim
vi
vim
setting this in my .bashrc fixed this
export EDITOR=vim