White Canvas with no image displayed.

Hi guys.  I appear to have a weird problem.

Just loaded a JPG and the canvas is pure white.  The Thumb Nail in Layer panel shows the image.

If I go into Image and Image Size I can also see the photo in there as well as in Camera Raw if I choose FILTER - Camera Raw Filter.   

So why is the main image that I want to edit showing nothing but a white canvas.

I tried other images and got the same thing.

I've also rebooted my PC.  

Anyone experience this before....