Access Rights

In each gallery, the access right for "guest" is checked and grayed out. I cannot uncheck it.

I let Fantastico install it. I've upload small galleries to photos_XXXXXXX. Everything seems to work beautifully except the guest access right is permanently checked.

I have many working galleries which I do not want to be seen.

Is there any help on this? I hate to give this script up - I've been looking a long time for one like this.

Thanks for any help.