I have now updated the Artistic Text font to version 0.221 which differs from version 0.22 in that the flags for code pages Latin 2: Eastern Europe (1250) and Windows Baltic (1257) are set.
The flag for code page Latin 1 (1252) was set in version 0.22 and remains set in version 0.221.
http://www.users.globalnet.co.uk/~ngo/ARTISTXT.TTF
This change was because of a problem which is documented in the following thread.
William Overington
11 September 2008