Cannot switch from Hebrew to English

[Kwaly]

Hi
I'm using Office 2007 professional.
I got into this problem in Word (most of the time).
I'm typing text in Hebrew and want to switch to English to type one word,
the windows (Vista Home Basic) displays the language switching and the word
sometimes do and sometimes doesn't but although it does, it keeps typing in
Hebrew.
only closing and opening the document will bring back the language switching
back to life.

I hope this bug will be fixed soon...