This is the second post I have seen recently claiming to have a buffer
overrun, with no further information. It seems very unlikely to me that a
program would recognise - and not avoid - such a thing, so what makes you
think you have one? Do you get an error message?
Incidentally I wouldn't describe - and I don't think Word does, either, -
Hebrew as a complex script.
We really need more details to have any chance of helping you.