tipa-package stopped working w. latest tetex-update

[Joachim Trinkwitz <upp105@ibm.rhrz.uni-bonn.de>]

Hi all,

after updating to the latest latex version the tipa package (`latest'
beta version) stopped working for me, after functioning flawlessly in
the past. I paste in some relevant snippets of the log file's error
messages (unfortunately I don't have some older log files from the
happay times when it worked):

(/usr/local/lib/texmf/tex/latex/tipa/t3enc.def
File: T3enc.def 1996/06/10 TIPA encoding
LaTeX Font Info:    Try loading font information for OT1+phv on input line 339.
(/usr/share/texmf/tex/latex/psnfss/ot1phv.fd
File: ot1phv.fd 1998/07/06 Fontinst v1.800 font definitions for OT1/phv.))
(/usr/share/texmf/tex/latex/ot2cyr/ot2enc.def
File: OT2enc.def 1996/03/08 OT2 encoding setup. S Rahtz, M Ellert, F Widmann)
(/usr/share/texmf/tex/latex/base/t1enc.def
File: t1enc.def 1999/02/24 v1.9t Standard LaTeX file
LaTeX Font Info:    Redeclaring font encoding T1 on input line 25.))

----- [...] ------

(/usr/local/lib/texmf/tex/latex/tipa/tipa.sty
Package: tipa 1996/06/10 TIPA version 1.0
(/usr/share/texmf/tex/latex/base/fontenc.sty
Package: fontenc 1999/02/24 v1.9t Standard LaTeX package
(/usr/local/lib/texmf/tex/latex/tipa/t3enc.def
File: T3enc.def 1996/06/10 TIPA encoding
LaTeX Font Info:    Redeclaring font encoding T3 on input line 2.
! LaTeX Error: Command \tipaupperaccent already defined.
               Or name \end... illegal, see p.192 of the manual.
l.301   {\upper@accent a\tipaencoding[\z@]}}
Your command was ignored.
! LaTeX Error: Command \tipaUpperaccent already defined.
               Or name \end... illegal, see p.192 of the manual.
l.303   {\upper@accent b\tipaencoding[\z@]}}
Your command was ignored.
! LaTeX Error: Command \tipaloweraccent already defined.
               Or name \end... illegal, see p.192 of the manual.

This goes on and on with all the code in t3enc.def. Can it be that the 
file is loaded twice now, and if it is so, what to do about this.

Hoping for help,
joachim