OK, here is my workaround:
I simply disabled the slider via CSS.
A loop with a wrapper for posts without the slider:
<div class="hideSlider">
<?php while ( have_posts() ) : the_post(); ?>
...
<?php the_content(); ?>
...
<?php endwhile; // end of the loop. ?>
</div>
And the CSS:
for lite-version:
div.hideSlider .easingsliderlite {
display: none;
}
for pro-version:
div.hideSlider .easingsliderpro {
display: none;
}