Thank you Konrad for your very quick follow-up. I don’t think this is related to bug#18407; I don’t suffer from slow-downs. Emacs instantly freezes after using the “eval line and step” icon from the tool-bar in QUICK succession. I believe it is time-dependent meaning if I use the tool bar slowly no lock-ups occur. Also C-g does not unfreeze emacs. I use Force Quite (Yosemite OS x) to terminate emacs. I also believe that the tool-bar is directly connected with freeze. Best Regards, Ragy Isaac President, Co-Founder Quality Promoter International, LLC (630) 460-2717 Skype: Quality.Promoter Ragy.Isaac@QualityPromoter.com http://www.QualityPromoter.com > On Nov 7, 2014, at 5:30 PM, Konrad Podczeck wrote: > > bug#18407