As posted to FB:
I broke-out the old Macair w/OS X Ver 10.8.5 and after downloading the dmg and double-clicking to mount to the desktop then running the app it sync'd right up and applied all interest from the last time I ran the last client in Mar '17. I also sent and rx'vd coin between another wallet on Windows no problem and best of all refreshed an earlier gift balance from zero, regenerated the html and created a new gift. Haven't redeemed a Gift but will try that soon. Any testing ideas shoot and I'll try to accommodate, but it looks pretty solid.
https://www.facebook.com/projectgivecoin/posts/808637782619326?comment_id=814124018737369&comment_tracking=%7B%22tn%22%3A%22R0%22%7D