I had been looking at Gospel passages when I closed the Text Comparison several hours ago.
1. Open Text Comparison; change Passage to Matthew 4; leave collection as is.
2. Get error message (1), verify that the first Bible contains the NT (2), (3), (4) ...
3. Get annoyed ... this step is vital given my troubled relationship with this tool.
4. Post bug report asking why on earth this simple request for viewing the new bibles doesn't work.
