Nerd tree: enter does not open sub dirs

Question

I installed NERDTree via Pathogen on Mac OSX 10.6.8.

When I vim a dir, I cannot enter into sub dirs with enter key. Furthermore, the dirs look like this:

Answer 1

I'm using RedHat 6.1 and vim 7.3 and had to recompile vim with multibyte support.

$ cd ~/src && wget ftp://ftp.vim.org/pub/vim/unix/vim-7.3.tar.bz2
$ tar xjf vim-7.3.tar.bz2 && cd vim-7.3
$ ./configure --enable-multibyte
$ make
$ sudo make install

Then verify that multibyte support has been enabled.

$ vim --version | grep byte
-arabic +autocmd -balloon_eval -browse +builtin_terms +byte_offset +cindent 
+mouse_xterm +multi_byte +multi_lang -mzscheme +netbeans_intg -osfiletype