Printing question - Cups ipp printer from Windows XP

[Linda]

When printing an Open Office document from windows to the unbuntu 
printer the document prints boxes in place of " and ' .  If the same 
document is opened on the Unbuntu computer and printed, it prints 
correctly.  The printer is setup using ipp on windows to connect and print.
This worked properly before we upgraded to the 8.04 LTS version. This is 
the only part of the document that prints incorrectly, formatting and 
inserted graphics are all correct. Does anyone have an idea on how to 
solve the problem?
                             Thanks
                              Linda