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Edit: If you're experiencing similar strangeness as in the screenshots, try resetting your font cache. There's a brilliant free app called FontNuke which will do it automatically and worked for me perfectly: http://www.jamapi.com/pr/fn/


I have had this problem for quite some time now, but not even sure how to formulate the question.

First to show what the problem is:

Screenshot with weird characters

Another screenshot with weird characters

In the embedded YouTube player (but not on the YT website itself), the GitHub desktop client, the EFI boot chooser screen for the OS X partition and a few other, completely random instances I see these weird characters. It's very sporadic though, I often forget about it until it pops up somewhere.

It started happening after a system update, installing Bootcamp or something like that, I'm not sure, but I suspect something manipulating the EFI.

I'm using a MacBook Pro 15-inch, Mid 2010 and this problem exists both under Snow Leopard and Lion.

Any ideas?

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Try resetting the font cache. –  Daniel Beck Feb 27 '12 at 0:33
    
Thanks @DanielBeck, that was it! Please repost your comment as an answer so I can accept it. –  dain Feb 27 '12 at 9:50

1 Answer 1

up vote 1 down vote accepted

Font issues are usually caused by corrupt font caches. Clear your font cache like described e.g. here.

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Thanks a lot! I found the free FontNuke app which did the trick: jamapi.com/pr/fn –  dain Feb 28 '12 at 0:44

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