What's in your .vimrc file?
dtf: Map some "leader" commands for common operations, eg:  let mapleader=','
  let g:mapleader=','

  nmap <leader>w :w!<cr>
  nmap <leader>q :q<cr>
  nmap <leader>f :find<cr>
  map <leader>d :execute 'NERDTreeToggle ' . getcwd()<CR>
  nmap <leader>m :make<cr>

  " cut & paste
  map <leader>c "+y
  map <leader>x "+d
  map <leader>v "+p

Also quicker window navigation:  map <C-j> <C-W>j
  map <C-k> <C-W>k
  map <C-h> <C-W>h
  map <C-l> <C-W>l