I simply cannot remove the leftmost vertical line in this table! I have gone through Format-->Borders and made sure all are set to "None" (aside from the Rows: Cell and Header settings which create the horizontal line) and all Levels sliders are as far left as possible....what am I missing? I only want the horizontal lines for each row. It seems the Rows: Header setting puts both the horizontal lines under the left header size of the table (C, H, L, S entries) AND the one vertical line.
Well, I am 2/2 on answering my own questions today, but hopefully this is helping others.
SOLUTION: in the "Row Divider" section of the Format Borders Menu Pane, the Level must be slid far right (for multiple levels I assume), instead of far left (for grouping all of the rows as 1 level). This took care of my problem.