Okay...seems I sussed out the problem...and as usual it was user error - doh!!!
It was the "Read" field that was causing the issue.I was using the
expression when none of the books I haven't read are marked "no" - they just have a blank space.
So I used the
and that returned as expected. This makes sense if false means a field unassigned (blank space)
Seems all the geek-speak got the neurons firing on my end!!
Really appreciate all the help. Thx very muchly. Lots of your pointers show me other areas of the program to start investigating.