I wanted to share what I have learned...
Quark crash support told me from my bug reports that it was a font issue. Apparently font caches on Mac OS X are a real issue for many folks, but one lovely gentleman has created a free, yes you heard me right, FREE software application that will cleanse your system of it's evil font caches.
FontNuke removes Quark/Adobe/System font cache files. By removing the font cache files, the system/Quark (in my case) is forced to rebuild from scratch new font cache files, just as you would refresh a web page.
What are some problems caused by bad 'font cache' files?
Fonts which have been added to the system or activated with 3rd party software, do not show up in application font lists. When multiple styles for a similar font family are active, the font displays as a different style then is selected (e.g.; Garamond-Bold is selected but displaying as Garamond-Italic)
Text is garbled or random characters are inserted
Text disappears entirely
Applications stall or quit immediately after launch
Fonts look correct on screen, but when printed:
convert to Courier or other random fonts
do not print at all, an error may be generated or nothing happens at all
...many, many more. (I will update this list as I remember/encounter scenarios.)
I ran FontNuke and my plagued Quark document opened up like a gem. Hooray!