Your mailer's User-Agent line (Icedove 17.0.10 for linux x86_64) seems
to imply that, like me, you're on Linux; and indeed, when I hit
Shift-Insert in gvim (Huge GTK2/GNOME2 version) in Insert mode, it
inserts <S-Insert>. In Normal mode I get a beep (which I have customized
to a visual beep).
The help about this key seems to indicate that it is specific to MS-DOS
and Windows versions of Vim. You can get it back, though, with the
following mappings (untested, and this assumes Vim 7.0 or later):
noremap! <S-Insert> <C-R>+
nnoremap <S-Insert> "+gP
snoremap <S-Insert> <Esc>gvc<C-R>+
xnoremap <S-Insert> c<C-R>+<Esc>
These mappings intentionally leave you in Normal mode after using
Shift-Insert in Visual but in Insert mode after using it in Select mode.
If I didn't goof, they all leave the cursor after the inserted text.
There could be an off-by-one error in the xnoremap (Visual but not
Select) mapping. Append an l or a <Right> if it upsets you, but this
might produce an unwanted advance to the next line if you're in
blockwise- or characterwise-visual at the end of a line.
Instead of these mappings, you can of course just insert register +
(which is the clipboard) in the normal way, either with the keyboard
(using key sequences similar to the {rhs}es above) or with the "Edit →
Paste" menu.
I suppose that the fact that it still works in a terminal means that
your terminal is handling it.
Best regards,
Tony.
--
Put another password in,
Bomb it out, then try again.
Try to get past logging in,
We're hacking, hacking, hacking.
Try his first wife's maiden name,
This is more than just a game.
It's real fun, but just the same,
It's hacking, hacking, hacking.
-- To the tune of "Music, Music, Music?"