Bug#340254: vim: syntax highlight no longer works in sid (6.4.1) ?

[linux at garyng.com]

Package: vim
Version: 1:6.4-001+2
Severity: important

I don't know what has been changed but I just upgrade a sarge system to sid(as a playground) and syntax highlight no longer works. It gives me an error of not finding the event "filetype bufRead"

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'stable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.4.32-xbox-chimpanzee-vs-ll
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages vim depends on:
ii  libc6                        2.3.5-8     GNU C Library: Shared libraries an
ii  libgpmg1                     1.19.6-21   General Purpose Mouse - shared lib
ii  libncurses5                  5.5-1       Shared libraries for terminal hand
ii  vim-common                   1:6.4-001+2 Vi IMproved - Common files

vim recommends no packages.

-- no debconf information