There is a known problem with international keyboards working with Word when the TextAloud Toolbar for Word is installed. From what we have heard, the keyboard doesn't work until you press either the return key or the space bar ... this seems to get the keyboard working again.
We are working on a fix for this problem. You'll need to use the above workaround until a fix is available, or, you can uninstall the toolbar for Word using the utility mentioned at http://www.nextup.com/phpBB2/viewtopic.php?f=15&t=6091
I will update this post when a fix is available.