I'm having problems with my thumbnails not displaying correctly when using NextGen Gallery and Portfolio Press. I am new to WordPress and I don't know if the problem is caused by the theme or the plugin so I am raising the issue on both forums.
If I have 6 columns the galley looks fine - see here
However when I change the number of columns to 4 I get 4 images, then 1 image, then 4 images and so on - see here
Can anyone suggest a solution?