I just pushed out 1.0. It fixes this issue, improves the professional appearance of the enlarged windows, added a 'none' transition effect, and fixes a Wordpress 3.1 editor buttons issue.
Another cool feature in this release is that the next/prev buttons work with respect to the mini galleries (captiongroup).
I removed some admin settings.
Recommend you set 'border' to be 10 or so. The old default of 1 looks a bit odd.