Upgrade Parallels from 11 to 13. Current system 10.11.6 MacBookPro 15' 2015 with an external monitor While using can not toggle back to finder to do work unless I am in mirror mode. When quiting/shutting down windows I am left with windows start screen still open with starting arrow and Parallels still active. Totally different than in version 11 where I wo9uld shutdown windows and quit windows and quit Parallels. Do not like to force quit programs. Help please Thanks Jimtf