Modularity Lite slideshow doesn't show all pictures

Hi, I set a theme Modularity Lite on my site:
http://wordpress.centrum.biz.pl
Problem is that I prepared some of my posts images as described in theme review: rescaled images size to 950px x 425px and attached my posts to the main page. Now the weirdest thing. Only 3 of posts images appear in a slideshow. There appears even a one image which is more than 950px wide (something about 1150px) but there are no 2 or 3 images which have set correct size. Any idea what is wrong? Thanks in advance. Pawel

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