I had previously deleted most of the Labels since they are not visible in Datasheet view... so, even with all Labels deleted, it's still the same.
From the start, I wasn't too hopeful that this would even be possible, but thought I'd give it a shot on the forum. Given the inflexibilities of Nested Subforms (my original plan was to use Continuous Forms view but Access wouldn't allow it, so 2nd choice was this Datasheet view w/ even less customization...), I'm redesigning the user interface to use several Subforms (not nested) instead.
But many thanks for your input, Smercer. I appreciate it.