I’m having the same problem.. other nggallery tag works fine but [slideshow id=1] and [slideshow id=1 w=800 h=600] show nothing, not even an error code.
I can however view the slideshows on https://nextgen-gallery.com/slideshow though so I’m assuming I’m missing some files in my WP directories?
Running WP 2.9.2 and just activated the latest nextgen-gallery version last night.
