[Wine] Khmer Unicode problem on Wine 1.2 and 1.3

[preahkumpii]

I have been trying to get Wine to work correctly with Khmer unicode. I am using theWord (http://theword.gr), which renders Khmer just fine in Windows. However, when I run the program in Wine, everything functions perfectly, except the Khmer font rendering. I have the fonts installed in Wine and the script does display in the font. However, the script is displayed incorrectly, as if the open layout tables in the fonts are not there or supported. So, the text is useless. Does Wine support Khmer unicode or not? Can anyone provide some information on how to fix this, or at least confirm that is it a known problem. Thanks in advance.