I'm using the NextGEN Gallery plugin (1.9.3) with the default Twentyten theme (I've removed my child theme temporarily). Everything works fine on the desktop. With mobile devices, when I click on a thumbnail image in the gallery, the enlarged image appears as it should, taking up about half of the width of the screen (as it does on the desktop). But, when I click the << or >> button to scroll to the previous or next image in the gallery, instead of seeing the next/prev image the current image zooms way in so all I can see is just a corner of it. If I click the << or >> again, I see the next/prev image, but still at very large magnification (the same magnification I just described).
I've tried switching to the new Twentyeleven theme, but I'm having some other page layout problems with that (only on mobile). Twentyten renders much better on mobile than Twentyeleven (except for the aforementioned problem) which is why I'd like to make it work with Twentyten.
I strongly suspect the problem is in style.css for the theme, or in the ngggallery.css or shutter-reloaded.css. I'm very good with CSS, have looked at all three of these files, but can't seem to put my finger on it.
Again, this is happening ONLY with mobile devices.
Has anyone else had the same or a similar problem?