Using Word / Office 2000 on XP

A while back I inserted some Hebrew letters in a Word doc.
As Hebrew reads from right to left, you have to insert
them (from the insert sympols command) backwards - but it
works. I recently went back to the doc and found that it
had reversed the Hebrew letters completely. I have also
found that I can no longer insert the Hebrew letters, as
work condinues to revese it to a left-to-right
orientation. I must have changed some setting, but I
can't seem to fix it.