Latin modern "fi" ligature not appearing in the PDF

[Gabor Greif]

I have switched to the .otf versions of the latin modern fonts
<http://www.ctan.org/tex-archive/fonts/ps-type1/lm/fonts/opentype/ 
public/lm/>
and now after pdf conversion I get "rst" instead of "first" in my  
document.

Indeed, I see warnings like these:

   9,17: ignoring unencoded ligature character quoteleft.dup in font  
file /Users/ggreif/psres/lmr9.afm (line 56)
    9,17: ignoring unencoded ligature character quoteleft.dup in  
font file /Users/ggreif/psres/lmr9.afm (line 86)
    9,17: ignoring unencoded ligature character IJ in font file / 
Users/ggreif/psres/lmr9.afm (line 96)
    9,17: ignoring unencoded ligature character ff in font file / 
Users/ggreif/psres/lmr9.afm (line 125)
    9,17: ignoring unencoded ligature character f_k in font file / 
Users/ggreif/psres/lmr9.afm (line 125)
    9,17: ignoring unencoded ligature character ij in font file / 
Users/ggreif/psres/lmr9.afm (line 128)
    9,17: ignoring out-of-order kerning pair k a in font file /Users/ 
ggreif/psres/lmr9.afm (line 9002)
    9,17: ignoring out-of-order kerning pair k aacute in font file / 
Users/ggreif/psres/lmr9.afm (line 9003)
    9,17: ignoring out-of-order kerning pair k acircumflex in font  
file /Users/ggreif/psres/lmr9.afm (line 9010)
    9,17: ignoring out-of-order kerning pair k agrave in font file / 
Users/ggreif/psres/lmr9.afm (line 9017)
    9,17: ignoring out-of-order kerning pair k atilde in font file / 
Users/ggreif/psres/lmr9.afm (line 9019)

After a bit of googling I encountered

<http://home.wrede.ca/pipermail/lout-users/2005q1/003894.html>

which left me wondering if this particular problem might be the  
reason for
what I see.

Did this patch enter in a recent lout version?

Thanks in advance,

        Gabor