In the new Dragonfruit release, we also worked on an improved, or completely new, photo album slideshow functionality. This replaced our LightBox based slideshow that worked, but had some quirks here and there.
I think the new slideshow is really awesome, and if you didn't try it yet, you should try it now!.
Take a look at these albums:
by derspecht, http://my.opera.com/365/albums/slideshow/?album=704336
by AgnetaM, http://my.opera.com/365/albums/slideshow/?album=722249
And these are my own :-)
From the 365 group, http://my.opera.com/365/albums/slideshow/?album=769801
And one of my first photo albums on My Opera: