lainyrache on "meta data file name replaces empty title every time I refresh meta data"

I am using the latest zenphoto combined with an old gallerific theme.
I have a similar problem to this post. My website has some empty titles for some of the images.
Every time I use meta refresh it replaces empty titles with image file names.
I have hidden any metadata I think is relevant via the admin options but this issue persists.
Is there any quick workaround. (Note: changing the way the theme calls the image title in javascript could cause more problems than it solves)
Can anyone guide me on where this can be disabled? thanks for your help.