[Plugin: WP Fluid Images] works but lightbox problems

I love it. keeping the image within the bounds of the post is great. but when activating the lightbox I’m using (Sexy Lightbox), the only one I could get work with the new WP 3.3, there’s an see-thru empty space on the left side of the popup box.
Is that because width of image is now defined as 97% wherever?
You can see my install here: https://word.reneodeay.com/

Uh, this happens using my Seamonkey browser on my Mac OS X Tiger, but doesn’t seem to appear in Safari 4.1.3.

https://www.ads-software.com/extend/plugins/wp-fluid-images/