Problem with Windows but not with Mac (I know, it's usual!!)

[Fran=?ISO-8859-1?B?5w==?=ois Cuneo]

Hello!
I have some square button that works perfectly on Mac OSX or 9 standalone,
but not on Windows 98 or XP standalone.

One of the code is by exemple
on mouseup
  global travailoujeu
  put "travail" into travailoujeu
  put empty into fld "questencours" of card "Travail écrit" of stack "ccox"
  send "initialiser_partie" to card "prefgen"

end mouseup


Nothin appends!

And a lot of buttons are like that!

Thank you

François