Have you checked the check box to apply special formats for the
left column?

I don't even see anything like that...

I use "Table Autoformat...", either from the table menu or the context menu.
The check boxes to apply special formats for header row, last row, first column,
last column are at the bottom.

Sorry if I get the menus/texts wrong: I don't have an English version to look at
right now.

Regards,
Klaus