[XeTeX] Syriac: Vowels misplaced

[Thomas Thackery]

Attached are two images.  The first is from XeLaTeX where I set a  
Unicode compliant typeface \newfontfamily{\syr}[Scale=1.2]{Estrangelo  
Talada} to typeset a sentence in Syriac.  This same sentence is then  
represented in the word-processor Mellel™.   In the Mellel example,  
the vowels appear correctly.  When this same text is typeset with  
XeLaTeX, the vowels crowd towards the baseline.   Is the "reason" for  
this related to the font itself? If so, what in the font file would  
one need to adjust?







Regards,
Thomas Thackery
تـومـا ثــاكري




-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://tug.org/pipermail/xetex/attachments/20070426/d905e1ee/attachment-0001.html 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Picture 4.png
Type: image/png
Size: 10687 bytes
Desc: not available
Url : http://tug.org/pipermail/xetex/attachments/20070426/d905e1ee/attachment-0002.png 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Picture 2.png
Type: image/png
Size: 40908 bytes
Desc: not available
Url : http://tug.org/pipermail/xetex/attachments/20070426/d905e1ee/attachment-0003.png