There is a VERY simple solution to this. I've been having the same problem with Skitch for a couple weeks now, and checked my forum post after experiencing the problem in Evernote this morning. Per forum post by Evernote Employee Jer Villanueva, I applied the fix below to fix Skitch. This fix also fixed the problem with Evernote. Link to Forum post: http://discussion.evernote.com/topic/37988-skitch-for-mac-252-is-live/