Vim: бинды <Shift+F2>, <Shift+F3> и т.д. не работают

<F3> - работает.
<S-F3> - не работает.
<C-F4> - не работает в xterm, в голой консоли работает.
Вот мой конфиг .vimrc

" ----------------
"   Base options
" ----------------

" uncompatible settings with Vi
set nocompatible

" turn off backup files
"set nobackup

" turn off swap files
"set noswapfile

" swap files directory
"set dir=~/.vim/swp

" turn on filetype plugin. 
filetype plugin on

" turn on syntax highlight
syntax on

" strings wrapping
set wrap

" wrapping by words only
set linebreak

" Enable folding
set foldenable

" synatax folding
set fdm=indent
"set foldexpr=getline(v:lnum)=~'^sub'&&getline(v:lnum+1)=~'{'?'>1':getline(v:lnum)=~'}'?'s1':'-1'
" by default all folds closed
"set foldclose=all
set foldminlines=0

" turn on autoindenting
set autoindent

" turn on smart indenting (file indenting)
set smartindent

" highlight settings
highlight Comment ctermfg=lightred
highlight Normal guibg=grey90
highlight Cursor guibg=Green guifg=NONE
highlight NonText guibg=grey80
highlight Constant gui=NONE guibg=grey95

" show filename on console window name
set title

" hide panel in gui version
set guioptions-=T

" display string numbers
set nu

" always display cursor position
set ruler       

" display uncompleted command in statusbar
set showcmd 

" command string height = 1
set ch=1

" status string format
set statusline=%<%f%h%m%r%=format=%{&fileformat}\ file=%{&fileencoding}\ enc=%{&encoding}\ %b\ 0x%B\ %l,%c%V\ %P
" always display statusbar
set laststatus=2

"hide mouse when typing
set mousehide

" turn off bell
set novisualbell
set t_vb= 

" use menu when autocomplete etc ????
set wildmenu

" button that show menu
set wcm=<Tab>

" turn on mouse
set mouse=a
set mousemodel=popup

" Default encoding
set termencoding=utf8

" auto change directory
set acd

" session options
"set sessionoptions=curdir,buffers,tabpages
"set sessionoptions-=options

" minimum strings displayed before cursor
set scrolljump=5

" minimum strings displayed after cursor
set scrolloff=5

" ignoring case when search words
set ignorecase

" incremental search
set incsearch

" turn off highlighting finded words
"set nohlsearch

" Do not unload file buffer 
"set hidden

" replace <Tab> by <space> 
set expandtab

" default <Tab> width
set shiftwidth=4
set softtabstop=4
set tabstop=4

" аЁ-q - exit from vim
map <C-Q> <Esc>:qa<cr>

" autocomplete by <Tab>
imap <tab> <c-r>=InsertTabWrapper()<cr>

" autocomplete from
set complete=""
" current buffer
set complete+=.
" dictionary
set complete+=k
" from other open buffers/tabs
set complete+=b
" from tags
set complete+=t

" autocomplete options
set completeopt-=preview
set completeopt+=longest
set mps-=[:]

set tags +=.vim/ctags

" ----------------
"      Hotkeys
" ----------------

" save
nmap <S-F2> :w<cr>
vmap <S-F2> <esc>:w<cr>i
imap <S-F2> <esc>:w<cr>i

" open new tab
nmap <F2> :tabnew
vmap <F2> <esc>:tabnew
imap <F2> <esc>:tabnew

" next tab
nmap <F3> :tabn<cr>
imap <F3> <esc>:tabp<cr>i

" previous tab
nmap <S-F3> :tabp<cr>
imap <S-F3> <ecs>:tabp<cr>i

" display Taglist window
nmap <F4> :TlistToggle<cr>
vmap <F4> <esc>:TlistToggle<cr>
imap <F4> <esc>:TlistToggle<cr>

" display marks browser
nmap <S-F4> :MarksBrowser<cr>
vmap <S-F4> :MarksBrowser<cr>
imap <S-F4> :MarksBrowser<cr>i

" display project
nmap <C-F4> :Project<cr>
vmap <C-F4> <esc>:Project<cr>
imap <C-F4> <esc>:Project<cr>

" make command
nmap <F5> :w<cr>:make<cr>
vmap <F5> <esc>:w<cr>:make<cr>
imap <F5> <esc>:w<cr>:make<cr>i

" make all
nmap <S-F5> :wa<cr> :make<cr>
vmap <S-F5> <esc>:wa<cr> :make<cr>
imap <S-F5> <esc>:wa<cr> :make<cr>i

" view next error
nmap <F6> :cn<cr>
vmap <F6> <esc>:cn<cr>
imap <F6> <esc>:cn<cr>i

" view previous error 
nmap <S-F6> :cp<cr>
vmap <S-F6> <esc>:cp<cr>
imap <S-F6> <esc>:cp<cr>i

" view errors list
nmap <C-F6> :copen<cr>
vmap <C-F6> <esc>:copen<cr>
imap <C-F6> <esc>:copen<cr>i

" encoding menu (koi8-r, cp1251, cp866, utf8)
set wildmenu
set wcm=<Tab> 
menu Encoding.koi8-r :e ++enc=8bit-koi8-r<CR>
menu Encoding.windows-1251 :e ++enc=8bit-cp1251<CR>
menu Encoding.ibm-866 :e ++enc=8bit-ibm866<CR>
menu Encoding.utf-8 :e ++enc=2byte-utf-8 <CR>
menu Encoding.ucs-2le :e ++enc=ucs-2le<CR>

" display encoding menu
nmap <F7> :emenu Encoding.<TAB>
vmap <F7> <esc>:emenu Encoding.<TAB>
imap <F7> <esc>:emenu Encoding.<TAB>

" string end format
set wildmenu
set wcm=<Tab>
menu Encoding.End_line_format.unix<Tab><C-F7> :set fileformat=unix<CR>
menu Encoding.End_line_format.dos<Tab><C-F7> :set fileformat=dos<CR>
menu Encoding.End_line_format.mac<Tab><C-F7> :set fileformat=mac<CR>
nmap <F8> :emenu Encoding.End_line_format.<TAB>

" spell checking
nmap <F10> :emenu Spell.<TAB>


" F12 - file browser
map <F12> :Ex<cr>
vmap <F12> <esc>:Ex<cr>i
imap <F12> <esc>:Ex<cr>i

" < & > - move blocks
vmap < <gv
vmap > >gv


" replace <Tab> with <space>
retab              

" search and replace words under cursor
nmap ; :%s/\<<c-r>=expand("<cword>")<cr>\>/

" C-c and C-v - Copy/Paste to global clipboard
vmap <C-C> "+yi
imap <C-V> <esc>"+gPi

" shift-insert fix
map <S-Insert> <MiddleMouse>

" C-y - remove current string
nmap <C-y> dd
imap <C-y> <esc>ddi

" C-d - doubles current string
nmap <C-d> yyp
imap <C-d> <esc>yypi
vmap <C-d> <esc>yyp

" [ replaced by []
"imap [ []<LEFT>

" а�аНаАаЛаОаГаИб�аНаО аИ аДаЛб� {
"imap { {<CR>}

" move to next string ( useful when sring longer then window width )
nmap j gj|      

" move to previous string ( useful when string  longer then window width)
nmap k gk|                   

" <space> in normal mode list pages
"nmap <Space> <PageDown>

" allow to use backspace instead of "x"
set backspace=indent,eol,start whichwrap+=<,>,[,]

" turn off replace mode
imap >Ins> <Esc>i

" autoreplace off
map R <Esc>              
imap <Ins> <Esc>a

" Fix <Enter> for comment
set fo+=cr

" window to bottom
" map <C-J> <C-W>j
" imap <C-J> <C-o><C-J>

" window to top
" map <C-K> <C-W>k
" imap <C-K> <C-o><C-K>

" window to left
" map <C-L> <C-W>l
" imap <C-L> <C-o><C-L>

" window to right
" map <C-H> <C-W>h
" imap <C-H> <C-o><C-H>

"fix russian 
map б� `
map аЙ q
map б� w
map б� e
map аК r
map аЕ t
map аН y
map аГ u
map б� i
map б� o
map аЗ p
map б� [
map б� ]
map б� a
map б� s
map аВ d
map аА f
map аП g
map б� h
map аО j
map аЛ k
map аД l
map аЖ ;
map б� '
map б� z
map б� x
map б� c
map аМ v
map аИ b
map б� n
map б� m
map аБ ,
map б� .
map . .
map а� ~
map а� Q
map аІ W
map аЃ E
map а� R
map а� T
map а� Y
map а� U
map аЈ I
map аЉ O
map а� P
map аЅ {
map аЊ }
map аЄ A
map аЋ S
map а� D
map а� F
map а� G
map а  H
map а� J
map а� K
map а� L
map а� :
map а­ "
map аЏ Z
map аЇ X
map аЁ C
map а� V
map а� B
map аЂ N
map аЌ M
map а� <
map аЎ >
map , ?

" ----------------
"  Pluging options
"  ---------------

" SessionMgr settings
"let g:SessionMgr_AutoManage = 0
let g:SessionMgr_DefaultName = "~/.vim/session"

" use snippets as ctrl+j
let g:snippetsEmu_key = "<C-j>"   

" tag list window
let g:Tlist_Inc_Winwidth = 0

" Taglist options (show current file in code nabigation window) 
let g:Tlist_Show_One_File = 1

"-------------------------
" PHP options
"-------------------------

" use php dictionary for autocompete (from http://lerdorf.com/funclist.txt)
set dictionary=~/.vim/php

" usefull php manual navigation
set keywordprg=~/.vim/bin/php_doc 


" php errors format
set errorformat=%m\ in\ %f\ on\ line\ %l

let g:pdv_cfg_Uses = 1

" turn on folding for classes/function
let php_folding = 1

" turn off short php tags for php code search
let php_noShortTags = 1

" sql highlightig in php code
let php_sql_query=1

" html highlight in php string
let php_htmlInStrings=1 

" base php functions highlighting
let php_baselib = 1

" -------------
"   Autostart
" -------------

" load dictionary
if version >= 700
    set spell spelllang=
    set nospell

    menu Spell.off :setlocal spell spelllang=<CR>:setlocal nospell<CR>
    menu Spell.Russian+English :setlocal spell spelllang=ru,en<CR>
    menu Spell.Russian :setlocal spell spelllang=ru<CR>
    menu Spell.English :setlocal spell spelllang=en<CR>
    menu Spell.-SpellControl- :
    menu Spell.Word\ Suggest<Tab>z= z=
    menu Spell.Add\ To\ Dictionary<Tab>zg zg
    menu Spell.Add\ To\ TemporaryDictionary<Tab>zG zG
    menu Spell.Remove\ From\ Dictionary<Tab>zw zw
    menu Spell.Remove\ From\ Temporary\ Dictionary<Tab>zW zW
    menu Spell.Previous\ Wrong\ Word<Tab>[s [s
    menu Spell.Next\ Wrong\ Word<Tab>]s ]s
endif

" autostart last session
"autocmd VimLeavePre * silent mksession! ~/.vim/lastSession.vim

" View non text files
au BufReadPost *.pdf silent %!pdftotext -nopgbrk "%" - |fmt -csw78
au BufReadPost *.doc silent %!antiword "%"
au BufReadPost *.odt silent %!odt2txt "%"


" -------------
"   Functions
" -------------

" autocomplete
function InsertTabWrapper()
 let col = col('.') - 1
 if !col || getline('.')[col - 1] !~ '\k'
 return "\<tab>"
 else
 return "\<c-p>"
 endif
endfunction

" folding 
function FoldBrace()
  if getline(v:lnum+1)[0] == '{'
    return 1
  endif
  if getline(v:lnum) =~ '{'
    return 1
  endif
  if getline(v:lnum)[0] =~ '}'
    return '<1'
  endif
  return -1
endfunction