I'm trying to configure the Responsive Classic template to have only a left sidebox. I've got the layout settings set to
- Globally disable the right sidebox
- Set the left sidebox width to 175px

When I display a page, the following widths are shown using FireBug:
- #contentMainWrapper ... 1427
- .col175 ....................... 158 + 6 (margin)
- .col795 ....................... 7 (margin) + 1121

That's a total of 1292 being consumed by the content -- where did the other 135 pixels "go". I see an unwanted line of background color on the righthand side of the display.