Found a solution at Artisteer site, that seems to work for me. A solution for something else, but bootstrap

Now I seems to get my columns
Artisteer Team
Posted: 8/16/2014
Quote message
We are very sorry for the confusion. We need to correct the announcement on the news page. It is not really support but more like "compatibility".
There was a conflict with bootstrap scripts(js) and Artisteer slider.
We solved this issue.
To use bootstrap media queries you just need to connect bootstrap stylesheet libraries to Artisteer templates.
To load bootstrap stylesheet libraries please try the following solution:
1.
open index.php file
2.
find the line below:
JHtml::_('behavior.framework', true);
3.
add this code right after the line above:
JHtml::_('bootstrap.tooltip');
$doc = JFactory::getDocument();
$doc->addStyleSheet($this->baseurl .
'/media/jui/css/bootstrap.css');
$doc->addStyleSheet($this->baseurl .
'/media/jui/css/bootstrap.min.css');
$doc->addStyleSheet($this->baseurl .
'/media/jui/css/bootstrap-responsive.min.css');
$doc->addStyleSheet($this->baseurl .
'/media/jui/css/bootstrap-extended.min.css');
$doc->addStyleSheet($this->baseurl .
'/media/jui/css/icomoon.css');