Left Column Loading In Wrong Order

Hi

I have a website built on Open Cart 1.5.6.4
The site is built using a commercial theme but do not know where it's come from.
I have an issue with the $column_left loading in the wrong position on the page.

The site is a responsive site, when the width of the page gets to under 768 pixels wide the site adapts from a desktop site to a mobile site. This is where the problem lies.
When the site is viewed above 768 pixels wide the $column_left loads as expected on the left hand side of the page before the page content.
If the site is loaded under 768 pixels wide the $column_left loads after the content which isn't the expected behaviour.

This wouldn't normally be an issue as the CSS hides the $column_left when viewed under 768 pixels but when the site is viewed on a tablet and it's rotated from portrait to landscape the site adapts from mobile view to desktop view, it then unhides the $column_left, as the $column_left loaded after the content it shows up on the right hand side instead of the left.

In the template files the <?php echo $column_left; ?> is directly after <?php echo $header; ?>, so it should load before any of the content so I can't understand why this is happening. I've disabled all CSS but the issue still happens so it's not a CSS issue.

I'm guessing it could be a PHP issue in a controller file but I am struggling to work out what may be causing this.

Any advice with how to solve this would be greatly appreciated.

Thanks.

you have to play around with your Stylesheet, to fix this, I don't think, anyone would be able to know, as long as you don't know, where your Theme came from, and don't supply even a link, for someone, to have a look...
Good Luck!
Ernie