I wish to uninstall BitTorrent Sync. The program is "hung up" and I can find no place and no option on my computer to close the BTSync window, shut it down and uninstall it. I'm operating on a MacBook Air. I am not a computer expert so any directions in this regard need to be expressed in very simple and easy to follow terms. One more thing -- I "ejected" the BTSync disk in Finder, even though there never was, technically, a disk. This made no difference. Please help -- I just want this program off my computer!!!