[Plugin: AutoNav Graphical Navigation and Gallery Plugin] Only displaying a single row

Hi,
I’m working with Autonav to build an attractive gallery section for my portfolio site, and it seems to do everything perfectly… except that it will only display the first row of the grid. I want 5 columns, and for the first row it looks perfect… but as the number of posts in the category grows, the old ones just disappear instead of getting bumped down to a second and third row. Here’s the shortcode I’m using:

[autonav display=”posts” postid=”category:work” pics_only=0]

and it’s generating this page:

http://dougstanford.com/portfolio/

There’s a 6th post that should be appearing in the first position on the second row (http://dougstanford.com/petharmony/), but it’s just disappeared. I tried sorting by random just to be sure the page itself wasn’t the culprit, and as I suspected, the post eventually made its way into the first row again, bumping out one of the other posts. I’ve since put it back to the default descending sort, as the shortcode here shows. Any help would be greatly appreciated, if I can get past this small hump the plugin will solve all of my problems! Thanks!

http://wordpress.org/extend/plugins/autonav/