Sceenshot gets corrupted when opening them in Photoshop
Not sure if this is a Photoshop or a OSX system problem, but I'd like to see if anyone has an idea.
Here's the problem.
When a make a screenshot from anywhere (cmd + shift + 4 (or 3) it looks good when previewing in the finder.
But when I open it in Photoshop it's all corrupted (se attached image).
Any ideas why this all of a sudden has started happening?
It has always worked fine until recently.
Note: If I restart Photoshop it works for a while, but the problem comes back after an hour or so of use.

