word syntax/umlauts emacs 23 vs 22

[Ralf Fassel]

I recently switched from 22.3 (opensuse 11.1) to emacs 23.1 (opensuse 11.3).

In emacs-22.3, a word containing german Umlauts was skipped as a whole
by forward-word/backward-word.

In emacs-23.1, a word containing german Umlauts is considered as three
parts by forward-word/backward-word.

E.g
  Müller   i.e.  "\115\374\154\154\145\162" in Unibyte/Latin-9

Setting point before the 'M' and doing M-x forward-word ends up after
the 'r' in emacs-22 and after the 'M' in emacs-23.

The syntax entries for the Umlaut ü in emacs-23 explicitely says 'word',
so why does forward-word stop at the Umlaut?

emacs-23:
            character: ü (252, #o374, #xfc)
    preferred charset: eight-bit (Raw bytes 128-255)
           code point: 0xFC
               syntax: w        which means: word
          buffer code: #xFC
            file code: #xFC
              display: by display table entry [?ü] (see below)

    The display table entry is displayed by these fonts (glyph codes):
    ü: 
x:-b&h-lucidatypewriter-medium-r-normal-sans-18-180-75-75-m-110-iso8859-1 (#xFC)

emacs-22:
      character: ü (252, #o374, #xfc)
        charset: eight-bit-graphic (8-bit graphic char (0xA0..0xFF))
     code point: #xFC
         syntax: w      which means: word
    buffer code: #xFC
      file code: not encodable by coding system iso-latin-9
        display: by display table entry [?ü] (see below)

    The display table entry is displayed by these fonts (glyph codes):
    ü: -B&H-LucidaTypewriter-Medium-R-Normal-Sans-18-180-75-75-M-110-ISO8859-1 
(#xFC)

Any hints how to get the emacs-22 behaviour back?

R'