What's in your .vimrc file?
Plugawy: Been through some changes lately - this is the trimmed down of my .gvimrc (MacVim).
    " window settings
    set lines=70
    set columns=200
    set fileencoding=utf8    set incsearch
    set ignorecase
    set hlsearch
    
    " make the status line more useful
    set statusline=%F%m%r%h%w[%L][%{&ff}]%y[%p%%][%04l,%04v]
    set nocompatible
    
    " backspace mode
    set bs=2
    
    " highlitt current line and add line numbers
    set cursorline
    set number
    
    " yummy
    set guifont=Monaco:h11.00
    
    " turn off the scrollbars and the rest of the crap
    set guioptions=eg
    
    
    ""set foldenable
    ""set foldmethod=indent
    filetype plugin on
    filetype on
    
    " autoindenting
    set cindent
    set smartindent
    set autoindent
    
    " display improvements
    set list
    " show indents
    set listchars=tab:\.\ ,trail:-
    set ruler
    set showcmd
    " i use tabs instead of spaces, wanna make something of it?
    set noexpandtab
    set tabstop=4
    set shiftwidth=4
    set softtabstop=4
    
    " temp files
    set backupdir=~/.vim/bak
    set directory=~/.vim/tmp
    " colorz
    syntax on
    colorscheme herald " molokai, zenburn, darkburn, vibrantink
    
    " PLUGINZ
     " allml settings
    let g:allml_global_maps = 1
    let g:HiMtchBrkt=1
    let g:SCMDiffCommand="/opt/subversion/bin/svn"
    
    inoremap <C-B> <ESC>:call PhpDocSingle()<CR>
    nnoremap <C-B> :call PhpDocSingle()<CR>
    vnoremap <C-B> :call PhpDocRange()<CR> 
    
    " PHP specific fixes
    " highlights interpolated variables in sql strings and does sql-syntax highlighting. yay
    autocmd FileType php let php_sql_query=1
    " does exactly that. highlights html inside of php strings
    autocmd FileType php let php_htmlInStrings=1
    " discourages use oh short tags. c'mon its deprecated remember
    autocmd FileType php let php_noShortTags=1
    " settings for cake
    au BufNewFile  *.ctp set filetype=php
    au BufRead *.ctp set filetype=php