Cannot install kubuntu 16.04 beta 2 64bit on virtualbox

Fri Mar 25 14:47:19 UTC 2016

Hi,
I am stuck on the installation because the "continue" button is greyed out.
Here is a screenshot.
https://dl.dropboxusercontent.com/u/10973298/kubuntu.jpg

Note the red icon on the top.
If that is the reason, it seems it has something to do with battery, but
the battery is full and attached to power, so it must be a bug, because kde
also shows it is 100% and charging.

Any help?

Thanks,
Diego
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