shortcode not working

hmm.. I changed the theme and now it works. but for the majority of the themes I tested, it did not work. any ideas on what would be causing this problem with the other themes?

Shortcode inside text widgets are not enabled by default in WordPress. You need to add this to your functions.php:

add_filter('widget_text','do_shortcode');

Some themes already have this code while others don’t (eg. twentyeleven). That’s why in some theme it works while in others it doesn’t.

Thanks, kosinix.

Where do I add this into functions.php?
Meaning, does it matter where I place the code or should it go into a specific section?

Nm.. I got it. Thanks again. That fixed it!

I added the code above and
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appears where the slideshow should be.