Hi

I'm building a page with nine images displayed in the centre of the page in three rows of three. All the images are the same size and I've applied no borders or frames. The images are set in the centre of their cells and cell margins are at the default setting. 

However, two of the images, one on the top row centre, and one on the bottom row left, are displaying shorter than the others. If anyone could suggest what I've done wrong it woud be much appreciated.

Thanks.