Photoshop showing a blank workspace

Hi all,

So, I've just updated Photoshop but for some reason, when I open an image or try and create a new image, the workspace is completely blank! However, the image shows in the layer thumbnail as you can see in the image below. 

I'm bit of a photoshop novice so if anyone knows how I can solve this issue I would be extremely grateful. 

Thanks!

Anna