strange black frames in os x
Recently my mom called me, complaining her mac was very slow and there was a strange black frame around some buttons, often following the mouseclicks. The symptoms so far were unknown to me, so I told her to send me a screenshot.
A google search showed, that it was due to OS X's built-in voice over feature which gives an optical feedback where the current focus is. Thus my mother should hear her mac talking, and she's not yet old enough to have bad hearing.
But even the best ears won't help, if you turned the volume down... I told her to press command-F5 and everything was back to normal. (If she would've worked on a notebook, it would've been CMD-FN-F5.)
In retrospective, I wonder why there was no info panel in the bottom right corner. On my computer it showed up automatically. Maybe I've activated it by chance in the VoiceOver Utility, tab "Display", checkbox "Show Caption Panel".
Kurzfassung auf Deutsch: wenn du mal so komischen schwarzen Rahmen in OS X begegnen solltest, die nicht verschwinden, egal in welchem Programm, so ist wohl das Vorlese-Feature ausversehen aktiviert worden. Den Spuck wird man wieder los durch Apfel-F5 drücken (bei einem Laptop Apfel-fn-F5).
