I have noticed that since yesterday's update (March 4), Logos 4 for MAC is freezing quite often, even when only one resource is open. At that point the only way to get out is to "Force Quit".
Jim, you might want to post this on the Logos 4 Mac forum.
Wondering if Logos indexing complete ? (Blue icon in menu bar - while indexing, Logos 4 performance is quite sluggish)
Mac Troubleshooting page has How to Report Bugs in Logos 4 Mac and Slow Performance sections - posting logs would be helpful.
Keep Smiling [:)]