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What might cause quicklook to 'freeze', as it were.

quicklook has gone south to some degree, some files are QL-able, other not, and we're speaking of the apple plug-in type (pdfs, txt, jpg, etc.)

Even whilst running the Topher 'fix', terminal hangs after either the qlmanage -r or qlmanage -r cache.

Cheers, and thanks in advance for any light your available time might hereby shed. :)

Running OSX, ver 10.6.6 on an iMac

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Is there a way to completely reset / regenerate QuickLook preferences (system-wide)? has an accepted answer that might help. – Graham Perrin Nov 5 '12 at 10:23

It is possible that some QL plugins are broken, you should check


for new QL plugins (check the date of the files). Maybe a program installed a new (broken) plugin? But some QL plugins are not inside the Library/QuickLook/ folders you can use

qlmanage -m

to list all QL plugins, with

qlmanage -m | grep -v

you see only plugins which are not from Apple.

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