some keyboard shortcuts not working after switching gnome language

["nick humphrey" <nick c humphrey gmail com>]

i am using gnome 2.14.3 on my fedora core 5 box. i had english as my
default language, but then i changed it to italian just for fun and to
learn italian better, but for some reason i can't get these keyboard
shortcuts to work:
open web browser: ctrl+alt+w
open file manager: ctrl+alt+h

they worked fine in english, but not now in italian. my other
shortcuts for open terminal (ctrl+alt+t) and show desktop (ctrl+alt+d)
work though. wierd. any suggestions?
thanks
Nick