UI Elements don't show in editor screen

Hi,

I recently updated to 5.0.1p4, which caused all my ui elements to be invisible in the editor's scene view, i.e. the bounding rect is displayed but the texture is not shown at all. In the game view everything is displayed correctly.
Did someone else experience this? (or even has an idea how to solve this, apart from downgrading)
This happens to me for new and existing projects. Also, deleting the library folder doesn't help.

 

http://forum.unity3d.com/threads/problem-with-new-version-patch-5-0-1p4-in-the-scene-view.324668/

 

Whee thanks!
I did not see this thread.

/close