[Plugin: NextGEN Gallery] Captions on Slideshow

Is there something I need to do in the shortcode [slideshow id=x w=width h=height] to enable captions? I have tried several plugins for slideshows and this is my favorite — I really really want to use it!

Here’s my slideshow with no captions 🙁

http://drainmag.com/site/2011/09/dniwer/

http://ww.wp.xz.cn/extend/plugins/nextgen-gallery/