problems with TaminoClient.printTree

I am just getting started with Tamino. I am playing around with demoQuery and when the tree gets printed the element names are only "???"
partial example:

new client created: http://bede.harvard.edu:81/tamino/test-db/Hospital
query results
??patient
???@ino:id=1
???#text

???name
???#text

???surname
???#text Atkins
??
???firstname
???#text Paul
??
???#text

?
???#text

???***
???#text Male
?
???#text

???born
???#text 1964


Any ideas as to what the problem is?

Mandell,
I guess the “?” are only some graphic characters used by printtree(), which do not come out correctly in your environment.

If you need more help, please give some more details about what you’re doing.