Very irritating formatting trouble

Since updating to the recent wordpress version, I’ve had a very minor, but utterly annoying problem with the formatting of my posts.

On my site http://www.rapnews.co.uk each interview post has an image on the main page of the post. the text previously wrapped around the image really well, and now it doesn’t.

When I view much older interview posts, the text is still wrapped around nicely, and even some recent new posts have wrappened well.

However; there are some posts which just look wrong, and it’s really important to me that I have consistency across my site.

An example of the problem is the most recent post ‘Smokey ‘Road Zombie’ Competition’.

Around the image, the text wraps, but it wraps awfully around the bottom margin of the image.

As opposed to the post ‘Nine High’, where the wrap is tight.

Upon looking at the edit page of both posts, I can’t see anything different in the layout of the block quotes and the excerpts.

I’d be grateful of any assistance. It’s really bothering me.

Thanks.