image Items margin height issue on IE

Hello,
I tried many lazy load plugin, so far this is the best in saving bandwidth and all.
But I have an issue with IE (my pages are all thumbnails and title), the height margin between items is about 170px more, this happen to images not in viewport, so once you scrolling the page, you’ll see half page with normal margin, and the other half with 120px more.
I was try to add an height with css targeting only IE, but not working.

Another thing: How to remove the effect, should be a fade in effect, which is applied after the page is loaded.

Thanks for your help