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Killerbob

macrumors 68000
Original poster
Jan 25, 2008
1,946
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I have folders on my NAS with thousands of JPGs. They show up fine on my laptops, but on my Mac Pro they have suddenly started showing up funky. Not all of them, but perhaps a few in a folder, and none in the next.

They show up "half", and when I click the spacebar, it is half the JPG I see. If I dbl-click on the thumbnail, the preview opens the picture correctly.

How do I refresh the thumbnails in finder?
 
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