Puzzling Mozilla Printing Problem

["Thomas H. George" <xyz@spininternet.com>]

I have a testing box with the latest dist-upgrade and can run Mozilla 
and access the Internet with either of two user profiles.  With one of 
the profiles the print setup and command works perfectly accessing 
either a printer attached to the box or a printer on the wireless lan.

With the other user profile the print command brings up a box with the 
message:

         XML Parsing Error: undefined entity
         Location: chrome://global/content/printdialog.xul

               title="&print dialog.title;"
            ~~~~~~^

I have found subdirectories for the two profiles in the 
/home/username/.mozilla directory each containing a subdirectory 
chrome.  The corresponding files in these chrome directories were 
identical in size and differed in creation date by only a couple of 
minutes.  I copied the files in the chrome subdirectory of the good 
profile to the other profile's chrome subdirectory but this did not 
correct the problem.

Since the both profiles are used by a single user everything else in the 
user's home directory should be the same.

I don't know where to look next and would appreciate any suggestions as 
to what is wrong and how to correct it.

Tom George