Maybe this has nothing to do with the module, I just thought I would bring to your attention. This has happened to me a couple of times so I thought I would share.

I have a gallery set up to show a 4 pics on one node (so multiple image uploads on a page, created through cck just as your documentation tells me to do).

Once in a while the last three pics disappear, leaving only the first one to loop itself. Not really sure why, but this happened to me at least twice.

Like I said, I don't know if this has anything to do with the fancy slide module, maybe someone else has had a similar problem. Thanks for the great module though, it looks great, it is easy to make work (really easy) and overall pretty slick.