[Plugin: NextGEN Gallery] Remove Alt Description

Hi.
I have been trying to remove the Alt tags from the photos in the NextGen gallery. I delete the title in the “Alt & Title Text / Description” boxes, but when I hover over the photos I still get the Alt yellow text box, just with no text in it. Is it possible to stop this from coming up and just have no Alt?

I have searched through the forum and could not find a solution for this. I appreciate any help I can get on this.

Thanks a lot.

http://ww.wp.xz.cn/extend/plugins/nextgen-gallery/