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

http://www.jgoode.com/easy-fix-for-mac- ... isplaying/

Summary:
1) Trashed ~/Library/Preferenes/com.apple.finder.plist
2) Used Force Quit menu to Relaunch Finder

Easy-peasy!

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 ge...

Instabuy!

With respect to (as well as for) the decision not to develop Scapple for iOS at this time, I wonder if anyone could provide advice about iOS apps that might play well with Scapple files. I'm looking to identify an appropriate app to view or perhaps even edit Scapple files that reside on Dropbox.

This is brilliant! This is close to how I use a piece of paper to sketch ideas. Some comments: I have not tested the export to OPML but trust it will be robust. I use a four-color pen in real life and would like some equivalent capability on Scapple. I'm not a fan of the dotted line -- a line withou...

Aha -- the Outliner view. I haven't wrapped my mind around how to use it, but this seems extremely helpful. Thank you very much -- I'll play with this.

Thank you for the advice. I see: I could create keywords such as "Course Date: 2012-01-18" (automating with TextExpander or Typinator to save time and reduce typing errors). Or I could open a folder within the Keyword HUD called "Course Date" and create separate keywords in that ...

While I've had a Scrivener license for a long while, I never became comfortable with it. Recently I upgraded and have begun to explore Scrivener's possibilities. The binder serves me marvelously well. I use the Draft folder to organize thoughts on a research project, and the Research folder to colle...