Blog bug in Internet Explorer 9

Hi,

I’ve a problem with my blog-page on my website when I open it in internet Explorer 9.

For one second it is OK, but then the whole structure mixes up…
My website blog-page: https://kbc.verzekeringen-portaal.net/nieuws

When I enter the post from the “my latest news”-widget for example, it works fine. (I only see that post then)

Only when I enter the ‘whole’ blog-page, it seemt to go wrong.

Strange thing: when I reduce my posts to 6 in total (no problem).
When I add one more then, it fails again! So it looks that it can’t handle more then a total of 6 posts on my blog!! (Very strange!!)

Here can you see how it looks when it goes wrong: https://kbc.verzekeringen-portaal.net/wp-content/uploads/Not-OK.jpg

Here you can see how it should look like: https://kbc.verzekeringen-portaal.net/wp-content/uploads/OK.jpg

Any idea how I can solve this? It would be a great help!

Thank you in advance!!
Vanwero.