thumbnail icons broken

I went to the Apple Store today for a completely unrelated issue with my MacBook Pro running MacOS 10.6.8. The first thing the Genius did was to force a shutdown by holding the power button.

This afternoon I see that my Desktop looks fine except for the two Scapple thumbnail icons. There is now a generic Scapple icon instead of a small preview.

How can I get the thumbnail icons back? Thank you.

Found the solution here, which is not specific to Scapple or any other app: … isplaying/


  1. Trashed ~/Library/Preferenes/
  2. Used Force Quit menu to Relaunch Finder


Glad you got it sorted!