Also using 4.2, in a Windows 7, tried to different computers both with Win 7 (Home & Work).
Here print screens:
- 3D view in the same WINDOW, grey, noting there in the 3Dview, image:
http://i.imgur.com/Xl0kVEh.jpg
- If I SPLIT the 3D View in another window, it works, image:
http://i.imgur.com ...