Next Gen Gallery problem changing elements ?

Hi

I have installed the gallery and it works great. The problem i have a sorry if this has been answered already, I could’nt see it, is that i can’t change the Alt/title information for each of the images, and more importantly I need to add a description to the the enlarged images. I have tried making changes, adding a description in the c/panel boxes but when I save they disappear.

Please please help this, I really really like the plugin but must get the description in place. Maybe its a permission issue, I am fairly new to WordPress and so it might be me.

Thanks

Ashley