We had these problems, too, and our copy has been properly licensed and registered. Freezing up and having to be shut down manually. Anxiously awaiting fixes.
I've had issues with freezing. Happens when switching from powerpoint.
This past Sunday, I told the operator to close easy worship and re-open after the powerpoint announcment pre-service loop. seemed to correct problem.
We use the newest version of powerpoint in office 365 and we do not have the viewer check selected.
EW6 has started freezing on us too. We were using it pretty successfully until 4/19. Now it will randomly freeze or we'll get the infinite Fatal Errors. Just now I built a schedule w/o problems then was looking at the images under the media tab. I right-clicked an image, selected Delete then nothing. Alt-Ctrl-Dlt to get the Task Manager yet EW6 stays layered on top so that I can not see the Task Manager so I needed to power down and restart. This is the new norm for us. Any ideas?