Hi Moritz, from the screenshot you posted, it looks like you have the older Nov-19-2013 v3 beta there.

If you download the current Mar-24-2014 beta from here: http://moi3d.com/beta.htm, that one does not expire until Sep-22-2014.

There will be another new beta release within the next couple of days.

- Michael

Hi Michael, thanks a lot.

It was a bit difficult with the new CustomUI but now it works fine.
Moritz