The following is the problem description:

We have enormous difficulties with printing letters etc. for our Czech and
Slovak customers. The problem is the Hyphenations. Especially when you have
to do a mail merge (word letter with excel data source). The problem is that
after a letter merge the result of the letters contain lots of question
marks. These question marks show up in the text at the places where (for us
special) letters have been used. The computer just doesn't recognize these
(for us special) letters.

The following is what we have done so far:

We are using office 2000. I have looked in knowledge bases on microsoft.com
and the rest of internet but can't find something about this issue which
helps me further. The special characters are displayed and printed correctly
from excel. But when merged to word, they are replaced by (red) question
marks. It seems to me then this isn't a font case. Also, when just cut and
paste from execel to word the characters are displayed and printed correctly.
I have also changed the default printer between pcl en ps printer drivers.
This also doesn't make any difference for the merge. Have you any idea where
to look?

Thanks in advance for your response!