White triangles appear in Favorites page
Hi all,
I am having some trouble with Safari's favorites page: when the bookmarks bar is open, white triangles appear on the page. Furthermore, when a webpage is open, one appears at the bottom of the bookmarks bar (beside the Edit button). They tend to move around arbitrarily, and it is difficult to get a screenshot as they have a habit of hiding. I did manage to grab one, however. Any ideas what this is or how to fix it?
I'm running 10.10.1 on a mid-2010 MBP, 2.66GHz, Nvidia GeForce GT 330M 512MB.
Thanks!
MacBook Pro (15-inch Mid 2010), OS X Yosemite (10.10.1)