[OS X TeX] A Fix for the Corrupt Font Cache Bug (2)

Joseph C. Slater PE, PhD joseph.slater at wright.edu
Wed Apr 8 19:56:20 CEST 2009

On Apr 6, 2009, at 11:36 AM, Richard Koch wrote:

> Folks,
> Many of you are aware of the ``corrupt font cache bug'' on Mac OS X.  
> While typesetting a document, the display of the output pdf suddenly  
> develops problems. Exact symptoms vary --- sometimes half of the  
> mathematical characters are missing, and sometimes the text  
> mysteriously changes from Computer Modern to Helvetica. When the  
> problem occurs, it is visible in many programs at once: Preview,  
> TeXShop, LaTeXiT, TeXniscope, etc. But the pdf file displays  
> correctly in Adobe Acrobat. Quitting and restarting programs does  
> not help, but rebooting the machine usually solves the problem. An  
> even better way to rebuild the cache is to issue the following  
> commands in Terminal:

Wow. These are the hardest bugs to find (I've got one in a 6 year old  
code of mine that I've surrendered to). Melissa O'Neill must be living  
on coffee to have been able to dig into this. My congratulations to  
the team on this. I had thought this would never be solved given its  

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