Hey guys,
I have a bugged viewport too.
Everything is fine when I am in Split view but when I select 3D view . I get a 3d view hidden by top-front-right.
Here is an image: http://i.imgur.com/7eu2v0e.png
Hi crobotok, it's fixed in the version 3.1 update, you can download the updated version by putting in your v3 license key here: http://moi3d.com/reinstall.htm . Once you switch to using version 3.1 instead of the original version 3.0 that problem should be solved.