What's in your .vimrc file?
enum: I think :set wildmenu is great, especially for relative newbies such as myself:  command! CD cd %:p:h " change to current buffer's directory
  set incsearch " Incremental search
  set hlsearch " Highlight search
  set guifont=Bitstream\ Vera\ Sans\ Mono\ 12
  set nowritebackup " no stupid backup files
  set noswapfile    " no stupid recovery files
  set wildmenu " it's wild
  set visualbell
  set fileformat=unix