STR (1) Make sure Settings is closed (2) Start it (3) Goto 1 Sometimes I see two blue circles appear superimposed over the bottom left quadrant of the app window. b? -> radar
I see this too in today's build. Gecko http://hg.mozilla.org/releases/mozilla-b2g18_v1_0_0/rev/361d9359f4f3 Gaia 0abc95774d0bbdfe314fa588e09fc92cac3e6427 BuildID 20130130113326 Version 18.0 Unagi
Random occurrence, plus it sounds like scrolling removes the circles so we won't track.
I don't think we fixed the underlying problem, but settings does way less work on startup now after bug 840322 so I don't see the problem anymore.