Mscore font not loaded in 1.1 on Mac OS X

There have since 2010 several reports of this and similar problems: Notes are displayed incorrectly as square boxes (font error characters) (here with MuseScore 1.1 on Mac OS 10.6.4). The suggestion to remove all fonts from the system reported as damaged or with minor problems did not help in my case. However I found that the nightly build r4829 of Sept 30th 2011 indeed does display correct notes on my Mac. Of course many other things won't work with the nightly build (and I don't expect them to), but this convincingly shows that the problem is not one within the Mac OS, but within the MuseScore software itself. I have started composing on MuseScore for my choir. It is a major annoyance that I cannot keep on producing and printing scores with this software (worked fine in 2010). Would some able programmer *please* get this fixed for good (and don't just state that the problem can't be reproduced. That to me sounds tantamount to saying "I don't know what we're doing either..." :-)
I have also observed that not only the notes in the scores are affected but also notes in the toolbars and other symbols in the toolbars. For instance the time signature 4/4 is displayed as z/z. S. attached pictures. Maybe this helps figuring out what is wrong with the font display. I also append a record of my output of a -d terminal command (/Applications/MuseScore.app/Contents/MacOS/mscore -d ) as suggested here. This contains the lines:

Sym: character 0xe104(57604)  are not in font 
Sym: character 0xe105(57605)  are not in font 
Sym: character 0xe106(57606)  are not in font 
Sym: character 0xe107(57607)  are not in font 
Sym: character 0xe108(57608)  are not in font 
Sym: character 0xe109(57609)  are not in font 
Sym: character 0xe10b(57611)  are not in font 

From that it seems the MScore1 font is broken. If characters cannot be found. Or is merely some assignment of font symbols broken, because my screenshots show that characters are found, only they are the wrong ones.

Earlier similar bug reports:
http://musescore.org/en/node/5869
http://musescore.org/en/node/6771
http://musescore.org/en/node/11409
http://musescore.org/en/node/4995
http://musescore.org/en/node/12826
http://musescore.org/en/node/12612
http://musescore.org/en/node/10022
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Unable to open file "/Applications/Music Notation Software/open source software/Muse Score notation (alpha version)/jul 2011 v1.1/MuseScore.app/Contents/Resources/sound/TimGM6mb.sf2"
printer DPI 12001200,000000(72) display PDPI 72,000000(72) DPMM 472488,188976
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Sym: character 0xe104(57604) are not in font
Sym: character 0xe105(57605) are not in font
Sym: character 0xe106(57606) are not in font
Sym: character 0xe107(57607) are not in font
Sym: character 0xe108(57608) are not in font
Sym: character 0xe109(57609) are not in font
Sym: character 0xe10b(57611) are not in font
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lastupdate: 30.09.2011 01:05:07.685
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2011-09-30 01:31:09.160 mscore[294:903] Cannot recognize type of executable for CFBundle 0x1e0a6c70 (not loaded)
2011-09-30 01:31:10.954 mscore[294:903] Cannot find executable for CFBundle 0x1e0c8d70 (not loaded)
2011-09-30 01:31:11.082 mscore[294:903] Cannot find executable for CFBundle 0x1e0cb440 (not loaded)